When Prince escapes from the backyard during a 4th of July party, Wade and Maggie Mitchell figure the beloved family dog will be back after he has his fun romping about the woods. And after the party breaks up, Prince does return. Wheezing, whimpering. Twitching, convulsing. Foaming greenish goop from pulsating jowls. And there are...things...moving underneath the dog's skin.Maggie hustles the kids upstairs while Wade frantically searches the Internet for clues as to what illness the dog has contracted. And then hell straight out of a creature-feature erupts in the Mitchells' once-idyllic household. Will Wade and Maggie be able to get the children out of the house safely...or will the worms devour them all?