 When two mysterious young women attempt to steal a prototype sports car, Gizmos are hired by vehicle manufacturer Tronix to provide security for the launch. Ed, Ros and Beckett find the women a formidable challenge, but the real threat comes from the sinister Major Cardenas, who is overseeing Tronix s other project - a prototype nuclear-powered stealth tank. The stakes change when, instead of the car, the tank is stolen. A furious Major Cardenas locks Ed in a laser cage, and if Beckett and Ros don t recover the tank in time, the unshielded nuclear core on board will explode.