Back to the Future Part II
Title: Back to the Future Part II
Marty visits 2015 to straighten out the future of the McFly family, but Biff Tannen steals the time machine, and with it a book that allows his young self to amass a gambling fortune, which has significant consequences to the present. To correct the problems, Marty and Doc must return to 1955 to retrieve the book.
Getting back was only the beginning as the most spectacular time-travel adventure ever continues in Part II - the sequel that proves that lightning can strike twice. Marty and Doc launch themselves to the year 2015 to fine-tune the future.