After taking down Pushkin's operations, Robert McCall works as a driver and assists the less fortunate with the help of his close friend and former
DIA colleague Susan Plummer. McCall travels to Istanbul to retrieve a 9-year-old girl kidnapped by her father and returns her to her mother (who is the owner of a bookstore he frequents). With Susan's assistance, McCall gathers information for Sam Rubinstein, an elderly
Holocaust survivor looking to recover a painting of his long-dead sister. After McCall returns home to find that his apartment's courtyard has been vandalized, he accepts an offer from Miles Whittaker, a troubled teenaged resident with artistic talent, to paint a mural on the walls. McCall also helps one of his passengers, a young woman named Amy, who shows signs of having been drugged and assaulted. He takes her to the hospital and returns to brutally beat the men who attacked her. Susan and DIA officer Dave York, McCall's former partner, are called to investigate the murder-suicide of an agency affiliate and his wife in
Brussels. Susan is accosted in her hotel room and killed during what seems to be a robbery. McCall determines that the expertly delivered fatal knifing means that Susan was targeted and that the murder-suicide was also staged. McCall reveals to Dave that he is still alive and informs him of his findings. When McCall is attacked by an assassin posing as a passenger, he kills the man and retrieves his mobile phone, discovering Dave's number on its call list. McCall confronts Dave at his home. Dave confesses that soon after McCall's supposed death, their unit was disbanded by the government. He and the rest of the team became contract killers. Dave says that he killed Susan because she would have figured out that he was behind the Brussels killings. When McCall leaves Dave's house, he confronts his teammates: Kovac, Ari, and Resnik. Before departing, he promises to kill them all to avenge Susan's death. Resnik and Ari head to Susan's house to kill her husband Brian, but McCall helps him escape. Dave and Kovac break into McCall's apartment, where Miles is painting the walls. Monitoring the apartment via
webcams, McCall directs Miles to hide in a secret safe room and makes a call to Dave to lure him away. When Miles emerges from hiding, Dave and Kovac capture him for leverage. Dave deduces that McCall has gone to his evacuated stormy seaside hometown. Once there, Kovac, Ari, and Resnik search the town in hurricane winds while Dave positions himself on top of a watchtower. McCall stealthily subdues Dave's teammates one by one. He impales Kovac with a harpoon fired from a speargun and kills Ari with two knives. Then, McCall leads Resnik to a trap in his deceased wife's bakery, triggering a
flour explosion that dispatches Resnik ignited by his own stun grenade. Now alone, Dave reveals that he has Miles tied up and gagged in the trunk of his car. He fires several taunting shots to lure out McCall, but McCall foils his last shot by shooting the car's tires to lower it. Dave, having been knocked down by the wind as it grows stronger, yells at McCall about failing to save Susan and attempting to save Miles. McCall surprises Dave on the tower. After a fight, McCall stabs him with his own knife in the abdomen in a similar fashion to Susan's fate, slashes the back of Dave's neck, and throws his body into the sea. He then rescues Miles, and the two retreat into his home to bind their wounds and wait for the hurricane to blow over. Back in Boston, Susan's information about Sam's painting helps McCall reunite Sam with his long-lost sister. Miles finishes painting the mural on the apartment complex's brick wall, returns to school, and focuses on his art. McCall's neighbor, Fatima, notices Miles' new mural. Having moved back into his old house, McCall looks out towards the sea. == Cast ==