Preston Struck is an incompetent outlaw with a heart of fool's gold. He discovers an army of metal men bent on destroying central California. While Struck avoids any form of heroism, he gets a little help from a magical old shaman and his sidekick Sasquatch. Struck is going to need all the help he can get because he's deputized just as the mechanical men have taken over the railroad and are mutating the train into a giant demonic iron monster.