Supergirl

During the destruction of the planet Krypton, scientist Zor-El and his wife Alura evacuate along with many Kryptonians to Argo City, where Zor-El activates a force field system that separates a chunk containing the city from the planet, preventing it from being destroyed when its core explodes. Eight years later, Alura gives birth to her and Zor-El's daughter, Kara. Eventually, it is discovered that the separation of Argo City exposed a mineral known as "Kryptonite", which is slowly killing the citizens via radiation. After Alura succumbs to her illness, Zor-El decides to send Kara and her dog Krypto on a ship headed to Earth. Upon landing, they are greeted by Kara's cousin Kal-El, who is living a double life as Clark Kent and Superman. Kara later tries to adjust to her new life on Earth, while also adopting the moniker "Supergirl".