In 1857 Captain Illiam Quillian Kewley and his band of rum smugglers are forced to put their ship up for charter. The only takers are two eccentric Englishmen who want to embark for the other side of the globe. The Reverend Geoffrey Wilson believes the Garden of Eden was on the island of Tasmania. His traveling partner, Dr. Thomas Potter, unbeknownst to Wilson, is developing a sinister thesis about the races of men.