More than anything, Gormy wants to be a big, scary monster just like his dad. But monstering isn't as easy as it looks! Gormy's parents are going away for the evening and that can only mean one thing - a monster-sitter! Oh no! When Nana the Noog arrives, she's like no monster-sitter Gormy's had before. But when the sun goes down, he'll find out just how different she is...and how monstrous he'll need to be to survive the night!