Held captive for 7 years in an enclosed space, a woman and her young son finally gain their freedom, allowing the boy to experience the outside world for the first time.

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.

1972 Hong Kong film

2017 film by Chen Kaige