Upon arrival, Marty ruptures the DeLorean’s fuel line. With no gasoline available in the 19th century, the duo must find a way to get the car up to 88 mph using only a steam locomotive.
The mission becomes even more complex when Doc falls in love with schoolteacher Clara Clayton (Mary Steenburgen), a woman who historical records say was supposed to die. Production & Reception Back to the Future Part III (1990) - IMDb Back to the Future Part III(1990)
Marty travels to 1885 to rescue Doc and bring him back to 1985. Upon arrival, Marty ruptures the DeLorean’s fuel line