When Argo, a lost city of Krypton, loses its source of energy, it's up to a young girl named Kara to retrieve it and save her home. Kara follows the source, known as Omegahedron, to the distant...

When Argo, a lost city of Krypton, loses its source of energy, it's up to a young girl named Kara to retrieve it and save her home. Kara follows the source, known as Omegahedron, to the distant planet of Earth and soon discovers that Earth is the home of her long lost cousin Kal-El (known to everyone as Superman) and that she possesses the same super abilities that he does. Soon, Kara obtains two new alter egos in her quest to find the Omegahedron; Linda Lee, high school student and cousin to Daily Planet reporter Clark Kent; and Supergirl, the Maid of Might! Adventure Runs in the Family!