The Adventures of Superman (radio) home planet of Krypton is located on the far side of the sun, as opposed to a distant star system as it is in most stories. During the journey to Earth, baby Kal-el grows into an adult and emerges fully grown from his ship after it lands on Earth. He is never adopted by the Kents but immediately begins his superhero career. This was eventually retconned in later episodes to match the narrative of the comic books. This serial introduced the fictional mineral kryptonite, the radiation from which can weaken and even (in some continuities) kill Superman. Aside from giving
Superman: Secret Origin that the fire was arson, part of an attack on "Planet." While still wary, public opinion is improving on Superman thanks to the "Planet," and their circulation rises by 700%. Lex calls upon General Sam Lane, Lois' father, who agrees to help Lex in exchange for weapons technology. Lex reveals that Superman is an alien, and can likely be stopped by the kryptonite rock Lex has, which also powers the Metallo battlesuit. Lois is greeted by Sgt. John Corben, with whom her father prefers she has a relationship. Lois refuses to date him, but John persists, and Clark steps in