Back to the Future (franchise) of sporting events to make easy money. However, Doc talks him out of it and throws the almanac in the bin, where the 2015 Biff Tannen finds it. A sleeping Jennifer has been taken by police to her future home, needing Marty and Doc to retrieve her before returning to 1985. While Marty and Doc are at the 2015 McFly home, 2015 Biff steals the DeLorean time machine and gives the book to his 1955 self just before he goes to the dance at the end of the first film. When Doc and Marty return to 1985, they find that
Back to the Future: The Ride the vortex to the original point of departure – the present, at the Institute of Future Technology (in which they crash through the "Back to the Future" logo in front), where Biff get out and thanks the riders and Doc for saving his life, but is soon seized by security. Riders exit the vehicle, as Doc thanks them and reminds them that, "The future is what you make it!" An animated logo of the Institute of Future Technology flashs up on the screen with the words "Please lift lap bar and exit" and after a few seconds Doc warns, "Hurry