When teenager Marty McFly is blasted to 1955 in the DeLorean time machine created by the eccentric Doc Brown, he finds himself mixed up in a time-shattering chain reaction that could vaporize his future—and leave him trapped in the past. Picking up precisely where they left off, Marty and Doc launch themselves to the year 2015 to fine-tune the future and inadvertently disrupt the space-time continuum. Now, their only chance to fix the present is by going back to 1955 again before it’s too late. Stranded in 1955 after a freak accident, Marty McFly discovers he must travel back to 1885 to rescue Doc Brown before he becomes smitten with schoolteacher Clara Clayton. Now, it's up to Marty to keep Doc out of trouble, get the DeLorean running, and put the past, present and future on track so they can all get back to where—and when—they belong.