Framed for assassinating the Grandmaster, the Lost Ninja Clan must battle their way up an underground nuclear bunker filled with hordes of supernatural enemies, mutants and flesh eating zombies. Trapped a thousand feet below the earth's crust, these ninjas will face hell.

After Sabrina is abducted, she finds herself in an underground lair, forced to do battle with other innocent women for the amusement of unseen spectators. Each of these reluctant warriors has something to lose, but only one will remain when the game is done.