Boris can't wait to spend the day eating, drumming, and playing in Melody Village. But when he notices that Major Monkeypants, his favorite (and only) stuffed animal, is missing, all of that changes. Determined to find his missing friend, Boris visits Bella, Marge, Gigi, and Tara to dig up clues. But along the way, he realizes that everyone is now a suspect in the Case of the Missing Monkey. Will Boris be able to piece together the clues to find Major Monkeypants?