Six months after the events of Back to the Future Part III, the DeLorean Time Machine mysteriously returns to Hill Valley-driverless! Now, Marty must go back to 1931 to recruit the help of a reluctant teenage Emmett Brown in order to save 1985's Doc from certain death. Can they repair the rifts of the past without accidentally erasing the future?

Six months after the events of Back to the Future Part III, the DeLorean Time Machine mysteriously returns to Hill Valley-driverless! Now, Marty must go back to 1931 to recruit the help of a reluctant teenage Emmett Brown in order to save 1985's Doc from certain death. Can they repair the rifts of the past without accidentally erasing the future?