*Speed and the authorities are baffled when the city's driverless cars take off by themselves. Unbeknownst to all, a swarm of toy-sized cars has invaded the city and attached themselves to the underbellies of their full-sized counterparts, taking control of them. When one of these mini-mobiles becomes attached to the Mach 5, Speed is on his way to solving the mystery of "The Car Destroyer." *Source: Back of Card