A sailor finds a beautiful young mermaid washed up on the shores of his town and, seeing that she is injured, takes her to his apartment. She invites her mermaid gang over, and they proceed to trash the apartment, kidnap and drug the sailor with a mysterious potion. They cut him open and find that his insides are made of jewels. The mermaids then sell the jewels to a cross-dressing pawn-shop Poseidon in exchange for motorcycles and guns.