A big purple bug gives Mona and Russell a good scare! Mr. Wooka shows them there’s nothing to be afraid of, and performs a puppet show about two monsters so afraid of each other they can't be proper monsters. Ready to conquer her fears, Mona puts on the purple monster costume in Nana’s closet, and has lots of fun being scary! At the end of the day, Nana sings a song about being a brave little monster.