Jeston Nash bears a striking resemblance to his cousin, Jesse James of Missouri. After killing a Yankee soldier in self-defense, Jeston joins cousins Jesse and Frank to fight in Quantrill's guerilla forces. Later, he rides with the gang as they invent their special brand of bank and train robbery. All the while, Jeston seeks vengeance against Daniel Zanone of the Free Kansas Militia -- the man responsible for the death of his child.