It's Leopold the Cat's birthday. The mice are trying to ruin it for him as best they can.
Part of
Includes: Leopold and the Goldfish, Leopold the Cat’s Revenge, The Treasure of the Cat Leopold, Leopold the Cat's Television, Cat Leopold's Walk, Leopold the Cat's Birthday, Leopold the Cat's Summer, Leopold the Cat Asleep and Awake, Interview with Leopold the Cat, Leopold the Cat's Polyclinic, Leopold the Cat's Car, The New Adventures of Leopold the Cat. Avalanche from the Mountains
