Detective Makoto Sato is on an unrelenting quest to bring down the Takahashi crime syndicate. Sato's efforts earn him a one-way trip to a tropical getaway, courtesy of the Tokyo criminal underworld. The exotic locale? MONSTER ISLAND! Alone and facing death at the hands of both gangsters and goliaths, Sato must use his wits to survive-and enlist the aid of some most unusual friends.