Jump to ratings and reviews

Win a free print copy of this book!

6 days and 17:40:42

10 copies available
U.S. only
Rate this book

Jack Reacher #31

Chain Reaction

Not yet published
Expected 20 Oct 26

Win a free print copy of this book!

6 days and 17:40:42

10 copies available
U.S. only
Rate this book
‘She knew that finding Reacher would not be easy. But not impossible either.’

The world’s bestselling hero is back in a brand new, high-octane adventure!

Washington DC. General Susan Turner needs help from the only guy she knows will get the job done right.

Buckle up for a ride like no other . . .

THE BRAND NEW REACHER NOVEL FROM THE NUMBER ONE SUNDAY TIMES BESTSELLING AUTHOR

416 pages, Hardcover

Expected publication October 20, 2026

Loading...
Loading...

About the author

Lee Child

438 books35.3k followers
Lee Child was born October 29th, 1954 in Coventry, England, but spent his formative years in the nearby city of Birmingham. By coincidence he won a scholarship to the same high school that JRR Tolkien had attended. He went to law school in Sheffield, England, and after part-time work in the theater he joined Granada Television in Manchester for what turned out to be an eighteen-year career as a presentation director during British TV's "golden age." During his tenure his company made Brideshead Revisited, The Jewel in the Crown, Prime Suspect, and Cracker. But he was fired in 1995 at the age of 40 as a result of corporate restructuring. Always a voracious reader, he decided to see an opportunity where others might have seen a crisis and bought six dollars' worth of paper and pencils and sat down to write a book, Killing Floor, the first in the Jack Reacher series.

Killing Floor was an immediate success and launched the series which has grown in sales and impact with every new installment. The first Jack Reacher movie, based on the novel One Shot and starring Tom Cruise and Rosamund Pike, was released in December 2012.

Lee has three homes—an apartment in Manhattan, a country house in the south of France, and whatever airplane cabin he happens to be in while traveling between the two. In the US he drives a supercharged Jaguar, which was built in Jaguar's Browns Lane plant, thirty yards from the hospital in which he was born.

Lee spends his spare time reading, listening to music, and watching the Yankees, Aston Villa, or Marseilles soccer. He is married with a grown-up daughter. He is tall and slim, despite an appalling diet and a refusal to exercise.

Ratings & Reviews

What do you think?
Rate this book

Friends & Following

Create a free account to discover what your friends think of this book!

Community Reviews

5 stars
52 (67%)
4 stars
21 (27%)
3 stars
4 (5%)
2 stars
0 (0%)
1 star
0 (0%)
Displaying 1 - 30 of 50 reviews
Profile Image for William Thompson.
8 reviews
Review of advance copy received from NetGalley
July 14, 2026
I want to begin with a confession: I don’t get excited about new book releases anymore. Social media has turned publishing into a spectacle — a churn of trends, tropes, and algorithm-friendly storytelling. Too often, a book feels like a product first and a story second.

But every year, right around the start of January, one announcement still cuts through the noise: the reveal of the next Jack Reacher novel. Reacher and I go way back, and he’s one of the few characters who still feels immune to the pressures shaping modern publishing.

The thirty-first entry in the series, Chain Reaction (releasing October 20, 2026), arrives with Andrew Child fully in the metaphorical driver’s seat. This time, Reacher is pulled into an off-the-books investigation rooted in an increasingly cyber-soaked world — encrypted networks, digital footprints, and data centers, so many bloody data centers. As someone who lives and breathes tech, I always enjoy watching Reacher navigate environments he fundamentally doesn’t understand and has no interest in understanding. His analog instincts become a kind of superpower.
And that’s why I keep coming back. Times change. Technology evolves. But Reacher stays Reacher — grounded, dependable, and morally clear in a world that refuses to slow down.

This novel also brings back General Susan Turner, formerly Major Turner in Never Go Back and 61 Hours. Now leading the Army’s G 99 Section — a covert unit with intelligence-level reach — Turner doesn’t just ask Reacher for help; she hunts him down. That reversal alone sets the stakes, because usually Reacher finds you, not the other way around.

Turner’s presence also adds emotional texture. She and Reacher share a quiet, mutual affection — expressed through trust, competence, and the kind of warmth that exists only between two people who understand each other deeply. But they also know the limits. Any closeness between them can only last as long as the mission. Reacher’s life is built on movement; Turner’s is built on responsibility. Their connection is real, but it’s temporary by design. It’s mature, honest, and perfectly in line with the emotional realism that has always defined Reacher’s relationships.

What follows is a classic Reacher adventure: sharp pacing, grounded action, and a steady escalation of danger that blends old-school Reacher with modern threats. Andrew Child respects the series’ roots while acknowledging the world we live in now. The action is clean, the investigation tight, and the final act delivers exactly what fans expect. It’s the kind of story that makes me hope the TV adaptation picks Chain Reaction for Season 5. Several scenes in Chain Reaction would translate beautifully to screen.

In the end, Chain Reaction is a confident, satisfying entry in the franchise. If you’re a longtime fan of the books or you’ve come in through the TV series, it’s absolutely worth your time. It reminds you why Reacher endures: not because he changes with the world, but because he doesn’t.
Profile Image for Martin Baggs.
171 reviews4 followers
Review of advance copy received from NetGalley
July 31, 2026
In the 31st installment of this iconic series, Lee and Andrew Child have delivered exactly what longtime fans have been craving: a return to the Reacher we know and love, fast-paced and unapologetically violent in all the right ways. From the opening pages, this felt like a course correction back to the character's roots.

The plot reunites Reacher with General Susan Turner, last seen in "Never Go Back," now firmly entrenched in the Pentagon and carrying real institutional weight. When a member of her team is brutally murdered on covert duty, Turner can't trust her own chain of command, not even her deputy, so she reaches outside the system for the one person built to solve problems and vanish. That's classic Reacher setup, and it works because the stakes cut both ways: the mission threatens to derail Turner's career just as surely as it threatens to end Reacher's life.

The trail leads to Summertown, Colorado, one of the more memorably strange settings in the series. A diner, a motel, five massive data centers, two solar farms, and a population of four. The authors know how to use isolation as a pressure cooker, and watching Reacher get sized up by the one person tracking his arrival is a great slow burn before the violence starts. The formula is familiar, Reacher and a sharp female counterpart working a mystery stacked with bad guys, but the Childs season it well here, folding in AI, cryptocurrency, and hackers who can kill a camera feed or pop a lock without breaking stride. Add the cross-country travel and you've got a crackerjack Reacher thriller that never lets up.

One line stuck with me long after I closed the book: "You did the right thing. What was he going to do to you? That's how you measure it. Like for like, but get your retaliation in first. That's what I used to tell my people. Words to live by." It's a perfect distillation of the Reacher ethos, and a reminder of why this character still resonates thirty-one books in.

I finished "Chain Reaction" with the satisfied exhaustion only a great Reacher book delivers. The Child brothers have crafted another winner that has me already looking forward to book 32. Whether you're a longtime fan or new to the series, this one earns its place on the shelf.

A big thank you to Ballantine and NetGalley for providing an advanced reader copy in exchange for an honest review.

#Netgalley #Ballantine
1,272 reviews19 followers
Review of advance copy received from NetGalley
August 13, 2026
Another year passing means it’s time for book number 31 (!) in the Reacher series. “Chain Reaction” by Lee Child, Andrew Child is the latest Jack Reacher novel, a rapid-fire page turner that one expects from the Child brothers, and (providing you suspend some disbelief) a novel that delivers the action.

We start with a welcome character from the past, Susan Turner, now a general running a covert unit in the pentagon. One of her agents has been murdered while pursuing a lead in rural Colorado, on a mission that few knew about. Not sure of whom she can trust, she tracks down Reacher to figure out not only how the agent was murdered but also why.

And off we go! Reacher quickly discovers that all roads seem to lead to a small “town” in Colorado consisting of a motel, a diner, solar farms, and data centers. After dispatching the local bad boys, we move on to a shady law firm, two tech geeks redefining the digital world, irate golf course members, and a gravel company to round out the story. So, what do we get? Typical Reacher: non-stop action, outnumbered fights, accurate intelligent conclusions from very limited data, practically superhuman strength and endurance, a bit of rekindled romance this time, and a disappointing conclusion that feels a bit rushed. All in a day’s work for our lonely hero.

If anyone has seen my previous reviews of the most recent Jack Reacher novels they may recognize some of the same comments since the latest in this series continues the trend of becoming a bit more of a mindless action superhero thriller. It seems to me that with Andrew Child writing more we seem to be moving away from Reacher as a human and turning him more into a machine, that the limited-depth characters have gotten even shallower, that the situations have gotten more outrageous. This has been happening for a while, but now we seem to be falling on some well-used tropes such as evil corporate guys, mercenaries willing to do anything, and inept local bad guys providing some comic relief for Reacher to beat up. But even having said all of that, I still tore through the novel in 2-3 days and will be first in line to read the next one!

I requested and received a free advanced electronic copy from Ballantine, Bantam via NetGalley. Thank you!
Profile Image for Stacy DeBroff.
319 reviews13 followers
Review of advance copy received from NetGalley
August 11, 2026
In this latest Reacher outing, Andrew Child, who is taking over the series from his Dad Lee, fully comes into capturing the Reacher persona- in a non-stop thrill read that leaves both on the edge of your seat, and guessing all the way to the end as to what is actually going on.

General Susan Turner, who’s a former lover of Reacher, has been tasked with heading up a new military intelligence investigation division paralleling for the spy community what the FBI does for law enforcement. She’s dealing with a serious internal leak within her newly formed agency, and she’s not sure who to trust. With much effort, she tracks Reacher down on the road due to his bank card expiring. Reacher agrees to help her help- with a constant tug of war internally between his desire to be on his own and him alternatively craving human love and friendship.

First task for Reacher: figure out how Turner’s investigator got killed when checking out a remote Colorado data center installation for irregularities, and secondly to figure out if Turner can trust her second in command, Elwood, so that she can bring him into the fold.

This launches a cascading series of events- in which many lives are endangered, bodies hit the pavement, a crooked law firm enters the mix, and brilliant tech bros seeking their billion-dollar IPO take center stage. Even immersed in a rapidly changing new world of AI, cyber data, and technology, Reacher holds onto his old-fashioned sense of morality.

Turner keeps their activities off the books as she can’t identify the source of the internal agency leak that has compromised their entire computer system, data and phones. Turner, Ellwood and Reacher draw on their many decades of seasoned investigatory experience to sort out the quagmire.

A fantastic, suspenseful outing capturing the full Reacher legacy!

Thanks to Ballentine | Bantam and NetGalley for an advance reader’s copy.
Profile Image for Peggy Huey.
528 reviews9 followers
Review of advance copy received from NetGalley
July 16, 2026
Net Galley allowed me early access to an electronic version of the story, which I devoured quickly. Major Susan Turner from Never Go Back returns to ask Jack Reacher for his help. She is now a one-star General in charge of a unit referred to as CSA GS-99, described as the army's version of the FBI. One of her CID Special Agents (John Bisley) was following a lead in Colorado when he was killed in circumstances that have raised Turner's antenna. To her way of thinking, Reacher is the perfect person to check out the location and determine what really happened to her agent--he can handle himself, he understands the army way of doing things, and, most importantly, he is outside of her chain of command, making the paper-trail for their interactions minimal. Reacher heads out to Summertown, just west of Denver, and finds massive solar panel fields and data centers, one of which, according to Bisley, may be a phantom center that is copying information from the legitimate data centers located nearby as the information is being moved around in the cloud where it is stored. He also finds the men responsible for Bisley's death and creatively deals with them. However, their appearance reveals that the perpetrators ultimately responsible for Bisley's death have managed to worm their way into the GS-99's NSA-level encrypted computer system, creating another, even more significant problem for Turner to fix. She joins Reacher in California, near Palo Alto, to trace one of the leads Reacher has unearthed to a local law firm that has been working with an A.I. start-up known as EEF — Everything Everywhere Forever. The two of them are joined by Turner's second-in-command Colonel Elwood to bring the perpetrators to justice and make things better for Bisley's wife and eleven-month-old daughter. #ChainReaction #NetGalley
106 reviews
Review of advance copy received from NetGalley
July 8, 2026
There has been lots of discussion about the continued viability of the Reacher series since Lee announced he was handing it off to Andrew. It's had its ups and downs. However, with Chain Reaction, Reacher is back! Andrew Child has finally found his groove. I've read every Reacher book as soon as it is released for many years now, and this one is a winner.

Reasons why I say this:
Susan Turner returns! Reacher is best when he's teaming up with his military buds, and he and Susan have great chemistry, both when working and when...playing. ;)

These villains are eminently hateable! Axel Brill and Saxby Cameron (what ARE these names? I've never met one person with an x in their name) are brilliant tech bros with zero morals who employ lazy mercenaries. Watching people who think they're smarter than they really are get what's coming to them is soooo satisfying.

Reacher and the baby!!! Listen, I don't normally go gaga for baby stuff, but just imaging the gargantuan Reacher holding and soothing a tiny human makes me all warm inside. I can't imagine what more child-focused women would feel here.

I can absolutely see this as a future season of REACHER. The AI/hacker topic is so hot right now, the above points are all tv-positive, and can you imagine if they recast Cobie Smulders as Susan Turner, only matched up with Alan Ritchson? HOT.

The only negative I've had with reading this book is that it's already over and the book won't be released for another 3 months! Now I have to wait even longer for Andrew's next installment. :( First world problems!!!

*****
Thanks to NetGalley and Bantam (Penguin Random House) for the ARC!
Profile Image for Denice Langley.
5,173 reviews55 followers
Review of advance copy received from NetGalley
August 24, 2026
Book #31 in the Jack Reacher series. I've been a Reacher fan for many years. As soon as I finish one book, I'm waiting impatiently for the next one, and I'm not alone. Reacher is the guy you want on your side in a fight. His ability to get right to the point is a trait many people wish others had. Jack Reacher first came to print in 1997's Killing Floor. He's been traveling the world and fighting for the underdogs ever since.

The story opens with General Susan Turner returning to the world of Reacher. This is the third book in the series she has been in, and each time she manages to find a soft spot in Reacher's heart. But this time, she needs his help. She's the Commanding Officer of a secret group in Army Intelligence, and one of her soldiers has been murdered. His death was disguised to look like a robbery gone bad, but suspicions have been raised. General Turner is concerned that she may have a traitor in her group and needs Reacher's help to eliminate her suspicions. The murdered soldier was a cybercrime expert who did not leave information that could explain why he was targeted. This sets up the backstory that drives the investigation. There are many possibilities to follow, all leading back to a large data center farm. Data center seems to be a dirty word lately. As always, Reacher will analyze and follow the clues that no one else can see. At this point, the future does not hold much promise for the bad guys.

One of the best scenes in the book is Reacher holding a baby and deciding he likes it. Future topic????
Profile Image for Alexa Smeby.
5 reviews
Review of advance copy received from NetGalley
August 3, 2026
This is the first Jack Reacher novel I've read, despite the series being 31 books deep. I came to it as a fan of the TV adaptation, and having Alan Ritchson's version of the character in my head while reading only made the experience better — I could picture Reacher clearly in every scene, which isn't always the case when you're starting a long-running series in progress.

Chain Reaction follows Reacher as he's pulled back into General Susan Turner's orbit after a member of her team is murdered on a covert assignment, leading him to an eerily sparse town in Colorado with barely any residents and a lot to hide. The plot moves fast, the setting is genuinely strange in a way that keeps the tension up, and Reacher's blunt, methodical way of solving problems is just as satisfying on the page as it is on screen. Even without the context of 30 prior books, the character work stands on its own — you don't need the backstory to understand who Reacher is or why people either want his help or fear him.

If anything, this book made me want to go back and start the series from the beginning, which feels like the best compliment I can give it. It's a strong entry point for newcomers and, I'd imagine, a satisfying continuation for longtime readers given Turner's return.

Highly recommended for thriller fans, especially anyone who — like me — has been enjoying the show and hoping for more seasons.
Profile Image for Jeff.
562 reviews12 followers
Review of advance copy received from NetGalley
August 4, 2026
I must confess that I have never read a Reacher novel. I’ve read a short story that I really enjoyed. And I have loved the Amazon show. No, I have never watched the movies that were horribly miscast. My brother-in-law threatened my life if I supported them.

Speaking of my brother-in-law, he’s the reason I have never read the novels. Why? Because he loves them so much that he has given me a play-by-play of each one of them when he reads them. And he does it in real time as he reads them. I have to wait till he finishes the book so I can find out how they end. Well, Walt, I have you beat this time. I got to read an ARC of “Chain Reaction”…and I loved it!

This novel is so well written. You see, Reacher is tasked with finding out what happened to a worker that works covertly out of the Pentagon. Have you ever had a loose thread on an outfit you are wearing and you pull on it thinking it will come loose only for the garment to start unraveling? No? It’s just me that was traumatized as a child as my favorite sweater began to disappear with a simple tug of a string? That is what this novel is like. Reacher shows up to a small Colorado town, pulls a string, and a whole lot of things begin to unravel.

There are a lot butts to be kicked. Some recipients that need some bullets. This is Jack Reacher doing Jack Reacher things. And it is glorious.


I received this ARC from NetGalley and the publisher in exchange for an unbiased review.
251 reviews5 followers
Review of advance copy received from NetGalley
July 19, 2026
Classic Reacher Action Meets a High-Tech Threat: Jack Reacher is pulled into an off-the-books investigation with two Army officers trying to discover who is hacking into classified NSA data files. The case leads them into a cyber-soaked world of encrypted networks, digital footprints, and seemingly endless data centers.

One of the most entertaining aspects of the story is watching Reacher navigate technology he does not understand—and has no interest in understanding. His old-school instincts and ability to read people become a kind of superpower in a world dominated by computers and data.

The intrigue and danger build steadily as new details are revealed. The story delivers plenty of action, suspense, murder, unexpected twists, and bad people who believe they can get away with anything. The pacing is sharp, the investigation is tight, and the final act brings everything together in a satisfying climax.

This novel moves quickly and kept me hooked until the final page. It is a top-notch blend of modern threats and classic Reacher storytelling—and an excellent addition to the series.

Thank you to NetGalley, the publisher, and the author for an advance copy of this book. I am voluntarily leaving this honest, personal, and unbiased review.
Profile Image for Alan.
1,850 reviews116 followers
Review of advance copy received from NetGalley
August 15, 2026
This review is for an ARC copy received from the publisher through NetGalley.
Susan Turner is back from Reacher's past. Now a brigadier general for a new division, essentially an internal FBI for the army, one of Turner's men is killed in an apparent mugging gone wrong while investigating something in Colorado. But Turner isn't convinced the death is what it appears to be, and needs outside help to prove it. After tracking Reacher down, he's happy to be reunited with her as together again as they try to solve a mystery involving shady lawyers, mercenaries and Silicon Valley.
This was another thrilling adventure for Reacher that was on the cusp of very topical elements with tech bros and AI being the focus. Though the meat of those subjects would normally be almost as foreign to me as they would Reacher, the Childs did a remarkable job of explaining the technology enough for the layman to understand without completely hitting the reader over the head with it. The off-the -track nature of Reacher helping an army one-star was a bit fantastical, but nonetheless exciting to read and easy to allow you to get lost in Reacher's world for the wild ride. A thoroughly enjoyable entry in the series.
Profile Image for Dr. Alan Albarran.
376 reviews21 followers
Review of advance copy received from NetGalley
July 7, 2026
The latest entry in to the long-running Jack Reacher series finds the protagonist working off the books with two Army officers to find out who is hacking into NSA data files. General Susan Turner has known Reacher for years, and seeks his help after an analyst in her unit is murdered while investigating the suspected site of the hacking in Colorado.

The murder turns out to be part of a bigger plot involving data centers, artificial intelligence, and bad actors (criminals). Reacher slowly begins to put the pieces together to try and understand the motive for the murder as well as the reasons behind it.

The book features a different side of Reacher as he interacts with the infant daughter of the murder victim--the first time this has happened in the series. Both the child and her mother are in danger as the people who took out her husband are also trying to tie up loose ends.

There is a lot of intrigue and action that slowly builds up to the climax where all the details are revealed.

I want to thank Lee and Andrew Child, Ballentine, and NetGalley for the opportunity to review an ARC of this new book.
282 reviews5 followers
Review of advance copy received from NetGalley
July 10, 2026
The real Reacher has returned. The last couple of Reacher books were okay but this one we have the Lee Child’s Reacher, and it is unbeatable. What I really enjoy about this series is that Reacher just wants to explore the world and be left alone. It seems no matter where he goes, trouble finds him. This is why we can’t wait to read the next book. Well, this book is a winner in my eyes. We have Reacher and he’s paired up with Susan Turner who works for the military and has worked with him before. What chemistry these two have both on the field and off. This book has plenty of action, intrigue and the climax slowly builds when different details are revealed. I enjoyed the many plot twists and especially the ending. I can’t wait for the next one to come out. Reacher has been asked by Turner to find out who killed an agent out in Colorado and why. This is just a start to Reacher’s investigation, and it turns into a more dangerous plot than Turner thought. Pickup and read. This can be read as standalone. Thank you to NetGalley and Bantam Books for an advanced readers copy in exchange for an honest review.
Profile Image for Kristen.
146 reviews46 followers
Review of advance copy received from NetGalley
July 10, 2026
General Susan Turner has a problem only an outsider can fix. She needs to track down Jack Reacher to have him figure out if she has a mole in her new division that leaked information which got one of her people killed. His death just doesn't seem right and only Jack can find out who.

In some ways you never really know what you will get with a Jack Reacher novel. You will definitely get a ton of action and butt kicking but Reacher gets into so much stuff all over the country (and even over different periods of his life), who knows what he has gotten in the middle of this book. I personally enjoy the military and military adjacent books which is what this one was. Susan Turner is back and runner her own division. Nice to see she has progress in her job but can still use Reacher's help every decade or so. I also really enjoy the way Reacher thinks. It was nice there were other people with similar thinking styles working with him. I overall really like this one and it makes me want to go back and reread some of my other favorites.
Profile Image for Jacqui.
Author 65 books231 followers
Review of advance copy received from NetGalley
July 12, 2026
I confess I opened this thirty-first book in the Jack Reacher series, Chain Reaction (Bantam 2026), somewhat suspiciously. I’ve devoured every Reacher book written by Lee Child, but not many be his nephew, Andrew. The voice is different, as though he’s trying too hard to replicate the old Reacher, can’t quite get it right, and in his failure, the story fails. So I took my time cracking open this book (usually I start it as soon as it arrives in my inbox), got five pages in, and changed my plans for the day. Andrew seemed to have learned to be Reacher.

This to my delight turned out to be a top notch story of high tech dreams, murder for all the wrong reasons, and bad people who think they can get away with anything, exactly what historically has inspired Reacher to join the fight on the side of justice. At the bequest of longtime friend, Brigadier General Turner, he does, bringing with him all his usual intellect, cleverness, wit, and physical power. I won’t tell you how it ends, but if you’ve read some in this series, you know. Now go on--grab the book. Enjoy every bit of it. 
Profile Image for Dave.
3,802 reviews468 followers
Review of advance copy received from NetGalley
June 28, 2026
Reacher is a Six foot-five trained ex military police officer who has never exactly settled into civilian life. He has no home, no car, no regular job. Instead, he’s on permanent walkabout wherever whim takes him. Reacher never finds trouble is too far distant and he has a penchant for helping others.

But here Reacher isn’t working alone but as part of a troika that includes now-General Susan Turner and her second in command Colonel Elwood, both of whom operate a super secret off-the-books outfit G99. Turner brings Reacher in because she thinks her unit has sprung a leak. A young officer in her unit died in Colorado visiting a solar farm and no one knows why.

Combining Reacher with Turner and Elwood offers three highly trained individuals who are each competent to take on murderous thugs run out of a Silicon Valley law firm. This is a modern battle for Reacher to fight in out digital world.
Profile Image for Sue Kelso.
305 reviews8 followers
Review of advance copy received from NetGalley
August 12, 2026
I enjoyed this Reacher book much more than the past couple that I have read.
Reacher needs to replace his debit card as it has expired. Someone is tracking this and arranges to find him at the bank. It's Turner, now a Brigadeer General and she needs his help.
Reacher goes to Colorado to find out why one of Turner's soldiers was killed investigating a data center. Reacher being Reacher, while not knowing the why has discovered the who and acted upon that. The rest of the book is discovering the why. Their hunt leads them to Silicon Valley where we meet the tech bros and their lawyers who have no sense of right and wrong.

The chase is a nice fast read that was very engrossing. This book made me want to go back and read The Killing Floor to see how Reacher has changed over the years. I felt he was excessively violent and I don't know how much of a change this is. Anyway, I really liked the book.
Profile Image for Kelli Hotard.
65 reviews1 follower
Review of advance copy received from NetGalley
August 25, 2026
Reacher is back! Much anticipated and did not disappoint.
The hints are there. The repetition is there (a little more Please). The action is there. Even the coffee/cup is there.

In Chain Reaction Reacher is teamed up with Susan Turner, a major who took over his previous position in the 110th and is a main character in Never Go Back. She is a general now, and needs his help. But how do you find Reacher? She has a to devise a plan to find him, then get him on board with a mission in which she can trust no else. One of Turner's men has been murdered. As the bodies continue to pile up, can Reacher prevent any more casualties on the right side of the law? Or will the criminals prevail?

The setting is mainly in Colorado and California with a little bit of time spent in DC. They use stolen vehicles (Reacher's idea) and military transport (Turner's idea) traveling back and forth.

Some of the newest ideas in technology are introduced to the readers.
361 reviews18 followers
Review of advance copy received from NetGalley
July 1, 2026
Having read and enjoyed all of the Jack Reacher novels, I thought I was extremely well versed in his character and make up. However, in this excellent novel, we see a softer side to him that we could never have imagined — his interaction with and feelings for an 11 month old child. Of course, there is a tremendous amount of action in this book with the requisite levels of fighting and murders; but, also, it was most impressive to actually see his deductive approach and powers in his examination of photographs and overall situations. In addition, one can only marvel at his daily consumption of food!
I can recommend this intriguing story without any reservations and thank NetGalley, the Childs and Penguin Random House for the opportunity to read and review this exciting novel prior to its publication.
Profile Image for Nicole Hancock.
931 reviews
Review of advance copy received from NetGalley
July 4, 2026
4-4.25 stars. It was interesting to read the Reacher ARC right after reading the new Eddie Flynn ARC by Steve Cavanagh (One of Us is Guilty). Both leads are very smart, which I love, and while lawyer Eddie throws metaphorical punches in the courtroom, our 6'5 friend Reacher beats people up with 1000 page books by Stephen King. But both are able to solve puzzles, see the big picture, and think several steps ahead - all makes for fun reading.

I enjoyed this one - especially as it took Reacher to the Bay Area where I live. Very typical Reacher - lots of coffee, some pie, and taking care of bad guys left and right. Won't upturn the literary world, but I still love reading him.

Thank you to NetGalley and Ballantine for providing me with an advance reader's copy in exchange for an honest review.

Expected pub date: October 20, 2026
207 reviews6 followers
Review of advance copy received from NetGalley
July 6, 2026
Thanks to Lee Child, Andrew Child, Ballantine, and NetGalley for access to the Advanced Reader Copy of this book in exchange for an honest review.

As this story unfolds, an old friend of Reacher’s finds a way to contact him and ask for help. A member of an Army investigative group has been murdered, and although the police have decided it was a robbery gone wrong. Reacher has been asked to investigate – outside the system, to learn the truth.

I love Reacher stories and I think I have read most, if not all of them. This one, like the others, is a solidly written story with a plot out of today’s headlines. The pacing and characters were great, but while it’s good, it’s not quite to the level of some of my earlier favorites – but still recommended.
Profile Image for Julie .
777 reviews15 followers
Review of advance copy received from NetGalley
July 9, 2026
Another riveting Reacher read.
The series just keeps getting better and better with each new addition.
Reacher is tracked down by an old military friend, now a Brig General, who needs help in investigating the
death of another officer under her command. . She needs to make sure there was no criminality involved because she has a suspicion that he might have been intentionally killed while on a brief, unscheduled trip to Colorado..
Reacher agrees yo look in to it, off the books and heads to Colorado.
Non stop suspense, action, thrills and engrossing story line.
The usual well defined and skillfully integrated characters add to the masterfully scripted story that is a trademark of all the Child books.
Great read.
Profile Image for Glady.
879 reviews14 followers
Review of advance copy received from NetGalley
August 11, 2026
I received a free ARC ebook of Chain Reaction from NetGalley in exchange for an unbiased review.

I have read most of the Reacher novels over the years and there is a clear reason why Lee Child's character resonates. Reacher is smart, big, gentle, fearless, and very willing to whoop bad guys who absolutely deserve it. For one who follows a nomadic lifestyle, Reacher is personable and alluring to women. His personal code, honed by his military service, is to protect and defend the helpless and to hold to account those who seek to take advantage.

This entry involves data mining, AI, and lots of technological wizardry. Reacher doesn't pretend to understand the tech
intricacies but does fully comprehend the motivations of con men and muscles for hire. A fun read.
Profile Image for Linda Quick.
1,355 reviews30 followers
Review of advance copy received from NetGalley
June 25, 2026
Wow! They did it again! This book started with a likely mugging and turned into a complex, yet so very simple, national threat. Reacher is sought out by his friend to conduct an off the books investigation. She doesn't know what's going on or who is involved, so Reacher steps up to help. What follows is an engrossing story that had me turning pages just as quickly as possible.

This novel moves quickly and kept me hooked until the very last page. It has all the action you'd expect in a Reacher story, and even has Reacher doing something for the first time.

Fans of the genre will love this book. The authors are on my must read authors ' list.
Profile Image for Tami.
220 reviews5 followers
Review of advance copy received from NetGalley
July 14, 2026
Excellent addition to the Reacher reads! and a fantastic birds-eye of data centers and bitcoin and how easy it would be to take advantage of both and rip off anyone who doesn't know any better. "Hindi to a beagle!" What a great line and a fantastic way to make someone dumb it down. I love Reacher! I also really loved how he showed his humanity and a bit of loneliness. Playing with the baby, cuddling with Turner. But still Reacher, through and through, wanting justice for a fallen brother in arms. And going about it in the only way he can. And at the end, going his own way. The nomad, hobo, remittance man. We all need a Reacher in our lives, may e now more than ever.
Profile Image for SusanH.
277 reviews
Review of advance copy received from NetGalley
July 17, 2026
General Susan Turner returns in this novel to find Jack Reacher and investigate why an agent was killed in Denver, Colorado. Reacher is really back in this installment and I loved this book. There is intrigue, chases, action and plot twists. It’s always better to start at the beginning of a series, however this can be read as a standalone. Reacher stills lives frugally, however he now has some understanding and appreciation for cell phones, the internet and AI. It doesn’t take away from the basic character and personality of Jack Reacher. This would be a great story for the TV series. With thanks to Netgalley and Ballantine for this ARC. My opinions are my own.



Profile Image for Megan.
80 reviews1 follower
Review of advance copy received from NetGalley
July 19, 2026
This was a classic Reacher story! I have loved the Reacher series for a long time and haven't missed an installment. Bringing back Susan Turner was a highlight for me. She shows another side to Reacher and I love the way they work together in the field. As always, the pacing, tension, and fight scenes were well written. I enjoyed the mystery in this one as well and how the location shifted often. The technical elements were well described and interesting as well. It helps that Reacher needs things explained to him on a kindergarten level. Do we know how it's going to end? Yes of course, but that is part of the Reacher charm. Thanks to Netgalley and the publisher for this ARC!
36 reviews
Review of advance copy received from NetGalley
July 23, 2026
Thanks to NetGalley and the publisher for an ARC copy of this book.

Chain Reaction” represents the best entry in the Jack Reacher series since the Lee Child/Andrew Child collaboration began.. Various strengths include an always welcome teaming up with old military friends (this time, now General Susan Turner), a timely, intricate plot around AI & cyber crimes, and a re-infusion of many of the old Reacher personality quirks (including several amorous interludes with Turner).

The pacing of the story is excellent, and the action is consistent and entertaining throughout. This is a return to classic Reacher, and hopefully a template for future entries. Highly recommended.

5 stars
Profile Image for Dan Lawson.
197 reviews4 followers
Review of advance copy received from NetGalley
August 24, 2026
Chain Reaction is the upcoming 31st installment in the globally bestselling Jack Reacher thriller series, co-authored by Lee Child and his brother, Andrew Child. Published by Bantam, an imprint of Penguin Random House, the highly anticipated 416-page thriller is officially scheduled for release on Tuesday, October 20, 2026.


Chain Reaction shapes up to be an essential entry for the modern Reacher era. By pairing a deeply nostalgic callback to his military past with a razor-sharp, modern cyber-conspiracy setting, the Child brothers are delivering a high-octane mystery that proves Reacher is still the ultimate outsider you want in your corner.
206 reviews2 followers
Review of advance copy received from NetGalley
July 1, 2026
Jack is back. By far the best of Jack Reacher in a while. This time the 110th is reaching out to him for help and he is happy to help the CO, a past love interest. This story bring big tech, AI, the military and some very shady characters into an intriguing plot that will keep you guessing till the end. The book starts out like a 9mm shot from a Sig Sauer MPX and does not slow down. On an off the books investigation, Reacher is turned loose and the results are truly entertaining. You hand will get tired turning pages, as you will not want to put this book down.
Displaying 1 - 30 of 50 reviews