Ace the Bat-Hound arrives in Metropolis and enlists Krypto's help to track down and stop the Joker's Hyenas latest scheme.
- Goof: It is kind of strange that with all his strength, Krypto couldn't break free from the magnet.
- Bud and Lou have Joy-Buzzer collars, preventing Ace from seizing them by their collars.
- Villain(s): Bud & Lou
- This episode features the first apperence of Ace The Bat-Hound.
- The Joker's hyenas appear in this episode. They are named Bud and Lou.
- Bat Hound often refers to Bruce Wayne as a partner rather than as a master