Four friends head into the jungle to locate a lost professor but instead face off against treasure hunters who are torturing and killing natives. Four friends head into the jungle to locate a lost professor but instead face off against treasure hunters who are torturing and killing natives. Four friends head into the jungle to locate a lost professor but instead face off against treasure hunters who are torturing and killing natives. Four friends head into the jungle to locate a lost professor but instead face off against treasure hunters who are torturing and killing natives.