A mad scientist working in the South American jungle miniaturizes his colleagues when he feels his megalomania is threatened.

Frank James resents and tries to stop a ruthless drifter who has adopted the name of his dead brother in order to duplicate his crimes.

Bob Ford murders his best friend Jesse James in order to obtain a pardon that will free him to marry his girlfriend but is plagued…

Frank James continues to avoid arrest in order to take revenge on the Ford brothers for their murder of his brother Jesse.