It is Wednesday, May 14, 1986. 6:04 p.m. Marty is coping with life without Doc for six months. Doc's laboratory is up for estate sale and is soon to be owned by the bank. Just as Marty has lost all hope, the DeLorean suddenly appears, and Marty is supposed to help Doc who is trapped in the past. Marty jumps in the DeLorean and travels to June 13, 1931. Young Doc of the 1930s must aid Marty in rescuing his future self.