Our only chance to repair the present is in the past at the point where the timeline skewed into this tangent. In order to put the universe back as we remember it and get back to our reality, we have to find out the exact date and the specific circumstances of how, where and when Young Biff got his hands on that sports almanac.
For å gjenskape det universet vi kjenner... og komme tilbake til vår egen virkelighet, må vi finne ut datoen... og omstendighetene rundt hvordan, hvor og når... unge Biff fikk kloa i Sportskalenderen.