As the Racers roar through the ruins of San Francisco, Dick Dastardly takes a detour that uncovers a shameful secret from his pre-apocalypse days. Dick has a difficult decision: repeat the mistake that shattered his past, or man up and do the right thing? But does Dick even know what the right thing means? Meanwhile, Peter, Penelope and the others face a swarm of flesh-eating nanites that threatens to strip them to the bones
The Racers are skirting the crumbling coastline of the Pacific Ocean when an earthquake threatens to dump them into the toxic waters! And when Penelope and Dick are caught in a tsunami that sweeps them to a barren island without their vehicles or weapons, how will they battle the island's horde of mutant crabs? And back on the mainland, the other Racers must fend off a tangle of carnivorous vines!
A bad batch of mutated mushrooms sends our antiheroes on a white-knuckle trip down memory lane. Flashes of repressed recollections bubble to the surface of the Racers' fevered brains, and these tantalizing tidbits suggest a single point of origin: a high-tech facility from hell known as the Butcher Shop! Against the advice of the omnipresent Announcer, the Racers roar towards the facility. But will they find answers?or death?