For 20 years, people thought locksmith Billy Bob Driwahl was at least a little crazy because he offered the rather unusual service of "zombie-proofing" in his Yellow Pages ad. Now that the world's being overrun by zombies, how did he know beforehand? It’s Billy Bob and Rufus vs. the Mayor’s idiot henchmen and a hoard of undead as the zombie crisis reaches San Rosina in full force. Can Billy Bob persuade his fellow citizens to zombie-proof their homes?