Jack Reacher is back with a new mystery. Chain Reaction, the latest novel in the bestselling thriller series by Lee Child and Andrew Child, arrived on October 20, 2026, bringing the former military investigator into a case involving a deadly murder and a dangerous search for answers.
Published by Bantam in the United States, the new book is the 31st installment in the Jack Reacher series. The release gives readers another standalone adventure featuring the resourceful drifter known for taking on threats that others struggle to solve.
Chain Reaction Jack Reacher Release: What Readers Need to Know
The latest Chain Reaction Jack Reacher release centers on General Susan Turner, a senior military officer who needs Reacher’s help after a member of her team is murdered while working undercover.
Turner cannot trust everyone around her, including her own deputy. With the investigation raising serious questions, she turns to someone outside the organization who can work independently and uncover the truth without relying on the usual channels.
Finding Reacher is not easy. He prefers life on the road and leaves little behind to help people track him down. Turner, however, has both the motivation and the resources to locate the one person she believes can handle the job.
Jack Reacher Heads to a Remote Colorado Town
The investigation takes Reacher to Summertown, Colorado, a remote community with an unusual concentration of major infrastructure. The setting includes massive data centers and large solar farms, adding a modern technological backdrop to the crime thriller.
The town’s isolated location and distinctive industrial landscape provide a different environment for Reacher’s latest assignment. As he investigates the case, the story connects the initial murder to a wider set of questions that demand his attention.
The book combines the series’ familiar elements of investigation, physical danger and institutional distrust with a setting shaped by modern technology. Readers can expect Reacher to rely on his judgment, persistence and ability to recognize details others overlook.
Lee Child and Andrew Child Continue the Reacher Series
Lee Child created Jack Reacher and established the character as one of modern crime fiction’s most recognizable action heroes. Andrew Child has collaborated with him on the later novels, continuing the series while maintaining its focus on fast-moving mysteries and independent investigations.
Chain Reaction continues that partnership with a story built around a covert murder, a military connection and a protagonist who operates outside conventional structures. The novel is designed to work as a new entry point for readers who want to follow Reacher’s latest case without needing to revisit every previous installment.
Where to Buy Chain Reaction
The novel became available in the United States on October 20, 2026, in hardcover, ebook and audiobook formats. The publisher lists the hardcover at $34, while the digital edition and audiobook offer alternatives for readers who prefer electronic or spoken-word versions.
UK readers can also find the novel through Penguin’s official publishing listing, which confirms the October 20 release date. Availability and prices may vary by retailer and format.
