Superman: Our Worlds At War is a massive crossover story arc, which deals with an invasion by Imperiex.
|Stories featuring Krypto, the Superdog|
|Silver Age |
|Adventure Comics #210 (First Appearance) • "Krypto's Family Tree"|
| Modern Age|
|World Without a Superman (First Appearance of Bibbo's Krypto) • Return to Krypton (First Modern-age Appearance of Kryptonian Krypto) • "Superman: Our Worlds at War" • Teen Titans #7 • Atlas|
|TV Series||Superman: The Animated Series (Cameo) • Krypto the Superdog • Legion of Superheroes (Cameo)|
|Prose||Starwinds Howl • DC Super-Pets! (Pooches of Power)|