The year is 1986, and Doc has been missing for a long time by now. Because of all the debts he was having, the city decided to build a parking garage at the place of his house, selling all stuff from it along the way. Marty McFly is trying to save things precious to him, but suddenly the time-traveling car DeLorean appears out of nowhere with the Doc's cry for help! It appears that Doc is stranded in the year 1931, where he was arrested for setting a speakeasy on fire. Marty must travel to the past and rescue his friend before he gets lynched by furious mob.