What if Supergirl had lived on earth all her life as an ordinary human girl only to discover her destiny and her power while on earth. How would a flawed teenager react to suddenly having the power to save the world? Would someone that has known loneliness, betrayal and hopelessness become a hero? Would she change the world or would the world change her? Follow the story of Kara Zor-el from the moment she arrived to earth as baby, as she shapes her own destiny.