The first 10 minutes of the outlaw Josey Wales is a movie in itself. Wales' farm gets sacked by red legs that kill his wife and son. He survives and buries them. Depressed he finds his guns and drinks and shoots to pass the time ( I guess until he kill himself?). In his despair Bloody Bill Anderson finds him and takes him on a raid in Kansas "to set things right". Battle and guerrilla warfare until the end when they just have to ride into the union camp and pledge allegiance.
That is enough plot for an entire movie! This is just the first 10 minutes!