A ship pulls into New York Harbor with no one on board. The police find a cargo full of green pulsating eggs. Upon contact the eggs explode spreading a green acid like substance that seeps into the skin and explodes. It is later discovered that the eggs are being manufactured in South America by a one-eyed Martian that grew from a tiny seed a former astronaut brought back from a expedition to Mars.
Two crooks kidnap a girl and hide out in the house of a friend who lives by trading with the natives in a nearby jungle. The friends wife is raped by Mario she exacts revenge by tying him to a tree and leaving him to the cannibals. She then informs the kidnapped girls parents of their daughters whereabouts and the crooks flee through the jungle.
Anthropologists take a trip to the jungles of Colombia to study native cannibals. Instead they find a band of drug dealers using the natives to harvest the cocoa leaf. After awhile the natives are tired of being tortured slaves and turn on their masters as well as the anthropologists thus filling the screen with gruesome splatter!