The final installment of the Back to the Future trilogy finds Marty digging the trusty DeLorean out of a mineshaft and looking up 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.
A simple-minded gardener named Chance has spent all his life in the Washington D.C. house of an old man. When the man dies, Chance is put out on the street with no knowledge of the world except what he has learned from television.
A small gold mining camp is terrorised by a ruthless land owner wanting to take their land. Clint Eastwood arrives riding a pale horse just as a young girl is praying to God to help the miners. He is revealed to be a preacher with mysterious and possible otherworldly origins who teams up with the miners to defeat the land owner and the corrupt sheriff.