BACK TO THE FUTURE
Teenager Marty McFly is accidentally sent from 1985 back to 1955 in a time machine invented by Doc Brown. Stranded in the past, he disrupts his parents’ first meeting and risks erasing his own future existence. Marty must guide his teenage parents back together while avoiding interference from bully Biff Tannen. With time running out, he and the younger Doc Brown devise a plan to harness a lightning strike to power the DeLorean and send Marty home. Marty returns to 1985 to discover his family’s future has dramatically improved thanks to the changes he made.

BACK TO THE FUTURE PART II
Marty and Doc travel to the year 2015 to prevent Marty’s future son from making a disastrous mistake. Their mission succeeds, but an elderly Biff steals the time machine and alters history for his own gain. Marty and Doc return to find 1985 transformed into a corrupt dystopia ruled by Biff. They travel back to 1955 to secretly undo Biff’s interference without disturbing their earlier selves. After restoring the timeline, Doc is unexpectedly struck by lightning and sent back to the Old West, leaving Marty to follow him.

BACK TO THE FUTURE PART III
Marty travels to 1885 to rescue Doc, who is stranded in the Old West and destined to be killed in a gunfight. While preparing to return home, Doc falls in love with schoolteacher Clara Clayton and considers staying. Marty confronts a dangerous outlaw while trying to ensure history unfolds safely. With no gasoline available, they devise a risky plan to push the DeLorean to time-travel speed using a speeding train. Marty returns to 1985 wiser about his future, while Doc chooses a life of adventure with Clara beyond the timeline.