G-Man, a secret society that schemes to conquer the Earth, sends out an executive woman called Lost, along with two reinforced humans to assassinate Dr. Murai, an authority on Biotechnology. They corner him to the verge of death, but Dr. Murai tells them a shocking fact about the reinforced humans of Lost! Dr. Murai himself, is the one who had created them and a life limit had been set upon them for safety purposes. Dr. Murai is the only one capable of undoing the life limit! The three Losts, under the condition that Murai would undo their life limit, accept the deal, which is to sneak into the nuclear weapon facility of the G-Man, and steal the plutonium. Although they succeed in stealing the plutonium, in order to assure their own safety, they set off to kill the combat android Simon that is in charge of getting rid of traitors, since they know that the G-Man annihilate all betrayers. After a violent battle, the Losts somehow make it alive, but are caught and forced to go through terrifying torture! Will they be able to make it out alive!