Superman's courageous canine takes to the air to fight crime in this Cartoon Network series. Sent to Earth as a test-pilot puppy, Krypto is adopted by 9-year-old Kevin Whitney. While posing as an ordinary dog, he teams with other superhero creatures -- including Batman's dog, Ace, and Streaky the Supercat -- to protect the world from evil. Villains include the pets of criminal masterminds such as Lex Luthor and Catwoman.