Peek a Boo!

Peek the adorable puppy is back, and it's her first Halloween! Greta and Peter are nearly ready to go to their town's Halloween carnival when Greta has a sudden realization: Peek doesn't have a costume! After several attempts to dress her up, the kids finally figure out that Peek wants to be a friendly ghost!

At the carnival, Peek's day takes an unexpected turn when she meets a lost boy named Henry, who has been separated from his parents amidst the bustling crowds. Henry, who is afraid of ...