Back to the Future ends with Marty McFly escaping a time before he was born to a radically altered present, leaving a few ...
Doc Brown worried that reading Marty’s letter would cause a paradox, but it might have saved the timeline in addition to his ...
Marty McFly has only just gotten back from the past, when he is once again picked up by Dr. Emmett Brown and sent through time to the future. Marty's job in the future is to pose as his own son to ...