If you had never heard of an airplane or a refrigerator, would you think it was a miracle when one arrived? When the American military landed on a remote island in the South Pacific during World War II, the islanders were amazed by America's fantastic cargo. The John Frum Movement was born: a unique religion now considered the last surviving "Cargo Cult". The program explores the history and last vestiges of this extraordinary religion, and in the process asks, where do our prophets come from? And what makes people believe?