Back to the Future Part II - Paradox (Coed Edition)

Getting back was only the beginning.

The second part of the trilogy begins as Doc, Marty, and Jennifer take the time-traveling DeLorean into the year 2015 to straighten out the future of the McFly-Parker families. But Biff Tannen steals the time machine and gives his younger self a book containing 50 years of sports statistics, which the young Biff uses to amass an enormous gambling fortune and transform idyllic Hill Valley into what will eventually be a waking nightmare due to the fact that George McFly is dead. In this near-nightmarish Hill Valley; George, Lorraine and Biff helped Doc Brown in founding the Institute of Future Technology to better mankind - but Match, Skinhead and 3-D are pulling Biff's strings. To restore the present; Doc, Jennifer and Marty must return to the events of their previous adventure in 1955 and retrieve the book - without interfering with the events of their first trip.