God has had enough of the bad behavior and attitude of humankind, and has decided to start it all over. It is up to a struggling inventor and a bank teller, both with very amateur criminal minds, to save the world by falling in love.

Rick, a down-and-out American boxer, is hired to transport a sword to Japan, unaware that the whole thing is a set up in a bitter blood-feud between two brothers, one who follows the traditional path of the samurai and the other a businessman. At the behest of the businessman, Rick undertakes samurai training from the other brother, but joins his cause. He also becomes romantically involved with the samurai's daughter.

Frederic Lansing is a writer who hopes to find inspiration while vacationing in Hellview, Oregon; however, the lighthouse in which he's staying is haunted by the ghost of Venetia, who had killed herself 100 years ago and now wants to use Lansing as a vessel for her dead husband, Captain Howdy. When Howdy's ghost starts killing people, two bumbling scientists are brought in to investigate the history of the lighthouse and solve the case.

An alien comes to Earth to save the planet by curing its men of impotence.

A series of hideous murders is taking place, and Inspector Capell and cop-turned-novelist Lonergan are investigating. The murders are found to be the work of an out-of-control experiment in genetic engineering. The two men must descend into the city's sewer systems to destroy the horrific miscreation. It won't be hard to find, as it's already looking for its next victims...