A New York University professor returns from a rescue mission to the Amazon rainforest with the footage shot by a lost team of documentarians who were making a film about the area's local cannibal tribes.
Three friends out to disprove cannibalism meet two men on the run who tortured and enslaved a cannibal tribe to find emeralds, and now the tribe is out for revenge.
An oil prospector escapes from capture by a primitive cannibal tribe in the Philippine rain forest and heads out to locate his missing companion and their plane to return home.