Krypto is a Labrador dog that has been raised by the Kal-El (Superman) family since he was born on the planet Krypton. When they crashed, their parents put them both on a spaceship and sent them to Earth. Kal-El and Krypto grew up together and possessed supernatural powers. They fight the bad guys side by side, protect the innocent people. Krypto the Super-Dog and Superman are inseparable best friends, sharing the same superpowers and fighting crime side by side in Metropolis. However, Krypto must master his own powers for a rescue mission when Superman is kidnapped.

Source: SolarMovie