Dom and the crew must take on an international terrorist who turns out to be Dom and Mia’s estranged brother. In 1989, Jack Toretto participated in a race with Dominic and Jakob in his pit crew. Dom argues with rival racer Kenny Linder about his dirty tactics. As the race resumes, Linder’s car clips Jack’s bumper and causes the car to hit a wall and explode, killing him. After the crash, Dom is arrested after nearly beating Linder to death. While serving his sentence, he learns about the dangers of a hairline crack, recalls that Jakob had worked on Jack’s car the day he died, and concludes that Jakob was partially responsible for their father’s death. Dom confronts and challenges Jakob to a race upon release, forcing him to leave town when he loses. In the present, two years after the confrontation against cyberterrorist Cipher,[N 1] Dom is retired, raising his son Brian with his wife, Letty Ortiz, in isolation from society.