Two piranhacondas hunt for their stolen egg. Scientist Professor Lovegrove, who stole the egg, hitchhikes to a Hawaiian island and meets a movie crew filming on location, including a stunt man called Jack and a script supervisor, Rose. The star, the scientist, and some crew members are kidnapped and held for ransom. A piranhaconda roaming the island devours several women and some scientists who are searching for a rare flower.