In the town of Dillford, humans, vampires and zombies were all living in peace – until the alien apocalypse arrived. Now three teenagers-one human, one vampire, and one zombie-have to team up to figure out how to get rid of the visitors.

When a dutiful, albeit barren Christian housewife discovers that her devout husband has suffered a stroke at a sperm bank where he’s been secretly donating his seed for the past 25 years, she leaves her sheltered world and starts off on a journey to find his eldest biological son – a mullet-headed, foul-mouthed ex-con with whom she develops an odd but meaningful relationship.