Marty McFly and Doc Brown return in a completely new Back to the Future adventure. Six months after the events of the third film, the DeLorean Time Machine mysteriously returns to Hill Valley - driverless! Marty must go back in time and get aid from a resistant teenage Emmett Brown, or else the space time continuum will forever be unraveled! Key features:Special Appearance by Michael J. Fox! Christopher Lloyd and Claudia Wells return to voice Doc Brown and Jennifer Parker Collaboration with Bob Gale Film, Trilogy Co-Creator/Writer Back to the Future’s “first families.” The McFlys, the Browns, and of course, the Tannens – all play key roles.