"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!!!