When their math teacher sends them to see the principal, two boys risk further punishment by following a new girl who has disappeared into the lost and found bin looking for her lucky hat.
Unhappy with their family's move to the city, Elmo and his cat Leon take a nocturnal journey to their old house in the country but find that things are somehow not the same there.
While on vacation, Mrs. LaRue receives letters from her dog Ike who has been falsely accused of harming the neighbor's cats and is trying to clear his name.
