A small town is taken over by an alien plague, turning residents into zombies and all forms of mutant monsters.

This version of "El Ingenioso Hidalgo Don Quijote De La Mancha" brings the ancient tale to modern day but all the old familiar names are there. As in Cervantes's tale, Don Quixote is persistent in his belief in chivalry and honor. He clings to the old ways and is reluctant to give way to modern behaviors. He sees things in a different way, the smoke stack of a factory is a beast to be conquered, his bicycle is his trusty steed and the hapless man stranded by a transit strike who tries to help suddenly finds himself to be the sidekick to the deluded Quixote.

Recruited by the U.S. government to be a special agent, nerdy teenager Cody Banks must get closer to cute classmate Natalie in order to learn about an evil plan hatched by her father. But despite the agent persona, Cody struggles with teen angst.

Passed over at work and numbed after she witnesses a colleague's murder, security guard Trixie Zurbo takes a relatively easy job at a lakefront casino, working undercover keeping an eye out for pickpockets. Trixie meets an assortment of colorful regulars: Kirk Stans, the casino's lounge act who drinks too much and is a dead-on mimic; Ruby Pearli , a glamorous, young and knowledgeable barfly; and Dex Lang, a raffish ladies' man who pays attention to Trixie in a way that's hard for her to ignore.