Members of a notorious motorcycle organization discuss their unrestrained lifestyle and what some believe to be persecution by law-enforcement groups and mainstream society.
Moe, Larry and Curly-Joe find themselves in a hilarious showdown against alien spies as they strive to protect a quirky scientist's groundbreaking new vehicle.
Susan begins a search operation in a remote area of Mexico to locate her fiance Bruce. The team finds a gigantic one-eyed monster who became disfigured due to exposure to excess radioactivity.
In the late 19th century, Captain Robur, a mad scientist, kidnaps a team to investigate a mysterious crater in Pennsylvania. He decides to destroy weapons of mass destruction to bring world peace.