 The U.N. sends a research expedition to New Guinea to investigate a radioactive dust cloud that appeared over the island, but the team suddenly goes out of all contact.Nishiyama joins a second team to find them and discover that the area around the team's last known position is now infested by large mutant bats and leeches; one leech renders a team member unconscious and he later turns violently insane after the team sets up camp.He is sedated, but is later feasted on by cannibals.