Marty and Doc (MICHAEL J. FOX and CHRISTOPHER LLOYD) have barely recovered from their first time- traveling adventure when they launch themselves once more in the the space-time continuum. But this time around, their attempt to fine-tune the future in the year 2015 created an outlandish, alternate 1985 Hill Valley where Biff Tannen is rich, powerful and...Marty's dad! Now their only chance to fix the present is by going back to 1955 all over again. But can Doc and Marty patch up the past without igniting a universe-shredding time paradox? Executive Producer STEVEN SPIELBERG and Director ROBERT ZEMECKIS rev up another round of wondrously inventive, comically super-charged action in BACK TO THE FUTUTE PART II!