After an adventure outside his home to help his owner, Buster now finds himself in the position of helping a lost little cat. Buster, Nova, and Chauncey take to the streets to find the cat's owner. But this strange stray turns out to be a ghost, and a reunion with its owner is going to be a lot harder than they thought! Will Buster and his friends have what it takes to reunite this lost cat and its owner?