Is it a girl? Is it a wolf? Oh, I know, it's a werewolf. Ozzie Funford and Eddy Greendorb keep telling Sarah Sweets and Andy Bleep and their classmates about the werewolf story at Science Wolf Camp. Too bad nobody believes them. Sarah and Andy discover a cave. A cave full of bats and a girl named Margret and she is slowly turning into a werewolf and she is hungry for human flesh. Good thing Sarah and Andy are not humans. Oh, wait, they are humans.