Escoping the fate of Argo, Krypton's last surviving city, Kara Zora-El is sent to Earth in a rocket to be reunited with her long-lost cousin, Superman. Under the Man of Steel's guidance, Kara is trained to become one of Earth's greatest heroes! These early adventures of Supergirl show her adopting the secret identity of Linda Danvers and performing her super-heroic actions while hidden away from society, giving her the status of Superman's Secret Weapon. Supergirl inevitably becomes a public figure, breaking the bonds of the 20th century to fight alongside the Legion of Super-Heroes and Tommy Tomorrow! And who could forget her adventures with Streaky, the Super-Cat!