When the parents of the future Superman sent their baby to Earth, they sent along with him his thirteen-year-old cousin Karu Zor-El. However, during the flight, the life-saving capsules were missed, and Kara's capsule fell into a spatio-temporal anomaly, where she spent twenty-four years. All this time the girl slept in suspended animation, and she did not mature for a single day. When Kara finally reached Earth, she discovered that her cousin had grown, matured and became Superman. Clark now attached his younger sister to the house of the Denvers scholars, and the girl grew up under the name Kara Denvers (Melissa Benoist). For years, she did not use her super powers, because she believed that the Earth is quite enough one Krypton hero. But when the life of her foster sister Alex (Kyler Lee) was threatened, Kara saved the falling plane and realized that it could be as useful as her cousin. Now she performs feats under the name Supergirl, while working as a secretary for media tycoon Cat Grant (Calista Flockhart).