A group of young people become lost in the jungle during a river rafting trip and stumble upon a long lost ruin that is home to a host of mysterious monsters.

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.

A forgotten king, Eirick, is tasked with the impossible odds to defeat Thor, the God of Thunder.