In Metro City, the M. Rex nanites have bonded with a twelve-year-old boy. These microscopic machines now form a living colony within his body, converting his life-force into their own purpose and identity. In exchange, they spontaneously forge any weapon or vehicle he can imagine. This symbiosis has become the last line of defense against a world where household appliances and super-computers have united to unseat humanity. Gator-men offer grim prophecies, monkeys plot in secret, and monsters have begun to organize. The boy’s imagination is the only thing standing between salvation and total annihilation for the human race.