Anthropologists, on a mission to disprove the cannibal mythos, go to Columbia to study the native population. Instead they find a pair of men lost in the jungle who are fleeing a savage attack by the local tribes. They soon find out that their new companions are no innocent themselves and are in actuality drug dealers hiding out in the amazon whom have enslaved and tortured the female and children populous of the villages whilst the men were away. This leads to the party being captured and subjected to various tortures.