Back to the Future II and III

When Doc takes Marty to the year 2015 to prevent his future son from committing a crime, old Biff takes the Gray’s Sports Almanac and travels back to 1955 and gives the book to his younger self. Over the next three decades, young Biff uses the information to win money on the outcome of each sporting event he bets on, making him the richest and most powerful man in the world by 1985A. To ensure that no one else gets their hands on the almanac, Biff travels through time and collects various items and puts them behind locked doors in three different periods. This action has caused a disruption in time, and now the Space Time Continuum is falling apart. With Hill Valley in ruins, Marty must now travel to all three periods, then find and return all the items back to their original places in order to retrieve the almanac and destroy it.