(W) Bob Gale, John Barber (A/CA) Marcelo Ferreira. "TIME SERVED* PART 1!" On a mission to uncover the secrets that sent Jailbird Joey Baines to prison* Marty is trapped in 1972 and the DeLorean has vanished! Things go from bad to worse when Biff Tannen teams with 18-year-old Joey to break into a house... and they drag Marty along! Their target: Doc Brown's mom!!!