Cahill U.S. Marshal

While J. D. Cahill (John Wayne), a widower and U.S. Marshal, is away from home, his two sons Danny (Gary Grimes) and Billy (Clay O'Brien) aid Abe Fraser (George Kennedy) and his gang to escape from jail and to rob a bank. The town's sheriff is shot and killed during the robbery. Billy hides the stolen money while his brother and the rest of the gang return to locked jail cells as an alibi.