Quantum Leap (1989): Season 1, Episode 8

1 - 8: Camikazi Kid - June 6, 1961

As a high school nerd, Sam is required to prevent the marriage of his sister to an abusive drinker, with the wedding only three days away. By drag racing the prospective husband, beating him with a car that couldn't have won without nitrous oxide, Sam shows the groom's true tendencies.