Back to the Future Part II 1989

Marty and Doc are at it again in this wacky sequel to the 1985 blockbuster as the time-traveling duo head to 2015 to nip some McFly family woes in the bud. But things go awry thanks to bully Biff Tannen and a pesky sports almanac. In a last-ditch attempt to set things straight, Marty finds himself bound for 1955 and face to face with his teenage parents -- again.

Spoilers for Back to the Future Part II

Submitted by: aberen

Marty recovers the sports almanac from Young Biff in 1955 and destroys it, restoring the timeline to its 'original', Post back to the future 1 state