When her father tries to sabotage the army's newest project, Eliza becomes a target for the military police. Luckily for her, she runs into Tyita, a street-wise teenager who decides to help out. Tyita is a Pet Shop Hunter, dedicated to collecting rare creatures for other planets. But Elize is the rarest of all, for she is the only one who knows the secret password to the ultimate weapon. The deadly game of cat-and-mouse begins, but the cats are armed and the mouse are made of stainless steel.