Back to the Future Part II (1989) ending / spoiler

After causing Biff to crash into (another) manure truck, Marty finally recovers the sports almanac from Young Biff in 1955 and burns it, restoring the timeline to its proper state. The DeLorean, which is flying overhead, is struck by lightning, sending it and the Doc through time. Thanks to the Doc's hind/foresight, he sends a telegram ahead to Marty's exact location and time, assuring him of his safety in his new location--1885! Marty immediately heads to where the 1955 Doc has sent himself (Marty) into the present (remember that this happened in the first movie), and tells him that he's "back from the future". The shock is too much for the scientist, and with a "Great Scott!", he passes out. To be concluded...

Submitted by Artp