The Enemy recap

At the start of 1990, Army major Jack Reacher investigates General Kramer's natural death, a missing conference agenda, and three subsequent murders. Lieutenant Summer helps him continue despite obstruction from Colonel Willard. Their inquiry links Kramer's secret meeting, Carbone's hidden agenda, and an armored-branch campaign against military transformation. Major Marshall killed Mrs. Kramer and Carbone and helped conceal Brubaker's death while Vassell and Coomer participated in the wider conspiracy. The recovered agenda exposes a planned list of eighteen assassinations. Summer obtains life-sentence confessions from the three men. Reacher admits a genuine assault, accepts demotion to captain, then secretly kills Willard for knowingly covering up the plot. After burying his mother in Paris and honoring her Resistance legacy, he returns to Army service in Panama. Summer is promoted to captain, and they do not meet again.

Previously: Jack Reacher is an Army military-police officer whose older brother, Joe Reacher, works for the Treasury Department. Reacher serves in the 110th Special Unit under Colonel Leon Garber and is accustomed to investigating sensitive cases within the military.

At the start of 1990, Major Jack Reacher is abruptly transferred from Panama to Fort Bird. Garber assigns him to handle the discreet aftermath of Major General Kramer's death in an off-post motel. The death is natural, but Kramer's wallet, travel papers, and briefcase are missing. Lieutenant Summer joins Reacher and helps establish that the general's unknown companion likely arrived in a heavy military vehicle rather than coming from the neighboring bar. When Reacher and Summer visit Kramer's home, they find his widow murdered. Vassell and Coomer, two armor officers travelling with Kramer, unexpectedly return to Fort Bird and deny that their planned Fort Irwin conference had a written agenda. Reacher suspects that the missing agenda is what someone sought at the house. The inquiry pauses when Joe Reacher reports that their mother is dying. On the flight to France, Joe points out that Reacher's unexplained transfer may itself be part of the mystery. Summer remains behind to investigate the Fort Bird women with vehicle access and any connection to Fort Irwin.

In Paris, Reacher and Joe learn that their mother has advanced cancer and has refused treatment. She asks them to accept her choice and reminds Reacher to use his strength rightly. When he returns, Garber has been replaced by Colonel Willard, who orders him to abandon the Kramer inquiry and uses an assault complaint as leverage. Summer's comparisons identify Andrea Norton as a possible link among Fort Bird, Fort Irwin, and the relevant vehicle records, though she has an alibi. A second killing follows: Delta veteran Christopher Carbone is found in a grotesquely staged scene. Reacher and Norton conclude that the display is meant to hide the real motive, but Willard orders the death recorded as a training accident. Carbone had filed the complaint against Reacher, placing Reacher under further suspicion. Meanwhile, Reacher and Summer discover that many capable military-police officers, including Calvin Franz, were transferred simultaneously. The pattern suggests a centrally planned operation. Franz confirms that sensitive armored-branch papers were copied and destroyed at Fort Irwin. At the close, police recover Kramer's abandoned briefcase beside I-95.

Kramer's recovered briefcase contains his ordinary travel effects but not the Fort Irwin agenda, confirming that the agenda remains the crucial missing item. Norton denies handling the case or having an affair with Kramer, and Reacher accepts that she had not seen it. While searching for trace evidence from Carbone's killing, Reacher and Summer find a bloodied crowbar that matches his fatal wounds. Soon afterward, Fort Bird's Special Forces commander, Colonel David C. Brubaker, is found shot dead in Columbia. Medical and travel evidence make it possible that one trusted, physically imposing offender killed both men and staged misleading crime scenes. Carbone's signature on his complaint against Reacher is genuine, leaving the complaint's purpose unexplained. Gate and armory records then identify Slavi Trifonov as an apparently decisive suspect: he left Fort Bird during the murder period with a pistol and returned with two rounds missing. Trifonov says he instead drove to help Elena, an abused Bulgarian-American woman. Elena confirms his visit, and her hospitalized husband identifies Trifonov as the man who shot him in both knees. The corroborated timing clears Trifonov of the murders and leaves the real killer unidentified.

A distinctive stolen crowbar links Mrs. Kramer's murder to Carbone's, but Fort Bird's gate records contain no man who fits the killer's physical profile. Brubaker was killed elsewhere, held in a car trunk, and planted in Columbia. Reacher and Summer turn to Major Marshall, Kramer's intelligence officer, whose sudden transfer to Germany followed the murders. They travel there on forged documents and learn that Vassell has already moved Marshall again, this time to Fort Irwin. Swan and Lieutenant Colonel Simon help them understand both Marshall's movements and the institutional anxiety surrounding changes to Army doctrine. Willard issues an AWOL order, forcing Reacher and Summer to leave Germany. In Paris, they find that Josephine Reacher has died. Calvin Franz reports that Marshall's claimed meetings after Kramer's funeral cannot be confirmed, making him the central lead. Lamonnier then reveals Josephine's hidden wartime history: under the name Beatrice, she served as a courier for the Human Railroad Resistance network and helped save Allied airmen. Reacher leaves France intending to pursue Marshall in California despite the disciplinary danger.

Reacher and Summer evade detention on their return and assemble records connecting Marshall to the murder trail. His black Mercury was available during Mrs. Kramer's death, and later forensic findings tie the car to Carbone, Brubaker, and correspondence addressed to Kramer. Sin identifies Carbone as the man who assaulted her and manipulated Reacher into the genuine brutality complaint. Reacher concludes that Carbone was Kramer's secret partner, took the briefcase after Kramer's natural death, and contacted Brubaker after reading the agenda. The Army Chief of Staff confirms that Operation Argon legitimately redistributed investigators, including Reacher and Franz, to detect unrest. Garber's removal came separately through the Secretary of Defense. In California, Reacher, Summer, and Franz arrest Vassell and Coomer. Marshall resists arrest by directing tank training fire toward his position, but Reacher wounds him and delivers him alive to the hospital. The easy surrender of the other officers prompts Reacher to search Carbone's room again. He and Summer recover the hidden agenda, which documents a contractor-backed campaign to prevent Army transformation and lists eighteen intended assassinations. Reacher gives it to Summer for the prosecutions.

The recovered agenda supplies the leverage Summer needs. Vassell, Coomer, and Marshall confess in exchange for life imprisonment, closing the named military conspiracy and confirming that Marshall pursued the agenda through the murders of Mrs. Kramer and Carbone and the concealment of Brubaker's death. Reacher is confronted with Carbone's signed brutality complaint and refuses an opportunity to deny what he did. He accepts demotion to captain, removal from the special unit, and a two-day suspension. He then confronts Willard at home. Willard admits that he knowingly covered up the planned killings under orders from above. Reacher kills him, plants drugs and cash on the body, and disposes of the incriminating items, leaving his own act undisclosed. Reacher travels to Paris for Josephine Reacher's funeral. He entrusts his share of her apartment proceeds to Lamonnier for people who resisted during the war and places his Silver Star in his mother's grave. Reacher returns to Army duty in Panama as a captain. Summer is promoted to captain and remains with the Washington case. She and Reacher do not see each other again.

Carbone's concealed agenda proves that military and contractor interests planned to obstruct Army transformation and assassinate eighteen supporters of lighter forces. Summer uses it to secure confessions from Vassell, Coomer, and the wounded Marshall in exchange for life imprisonment, while JAG pursues the wider case. Reacher refuses an offered false denial of Carbone's valid brutality complaint. He accepts demotion from major to captain, removal from the special unit, and a two-day suspension. He then confronts Willard, who admits knowingly carrying out a superior order to cover up the killings. Reacher kills him and plants evidence to make the death appear criminal. In Paris, Reacher and Joe attend Josephine Reacher's funeral. Reacher gives his share of her apartment proceeds to Lamonnier for wartime resisters and places his Silver Star in her grave. Reacher returns to Panama as a captain. Summer is promoted to captain and remains with the Washington proceedings; she and Reacher never meet again. The named military conspirators are imprisoned, but the higher political and contractor participants are not individually resolved.