Agents of an oil tycoon vanish while exploring a swamp marked for drilling. The local sheriff investigates and faces a Seminole legend come to life: Man-Thing, a shambling swamp-monster whose touch burns those who feel fear.
Inter-tribal rivalry leads to a competition to erect a huge statue (moai) in record time before Make can take part in the race to retrieve the egg of a Sooty Tern. The reward for winning this race is to rule the island for one year.