Marty and Doc are at it again 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.
The final installment finds Marty digging the trusty DeLorean out of a mineshaft and looking for Doc in the Wild West of 1885. But when their time machine breaks down, the travelers are stranded in a land of spurs. More problems arise when Doc falls for pretty schoolteacher Clara Clayton, and Marty tangles with Buford Tannen.
Summoned from an ashram in Tibet, Ace finds himself on a perilous journey into the jungles of Africa to find Shikaka, the missing sacred animal of the friendly Wachati tribe. He must accomplish this before the wedding of the Wachati's Princess to the prince of the warrior Wachootoos. If Ace fails, the result will be a vicious tribal war.
