sending it into the Phantom Zone. The episode "Hostile Takeover" revealed that the planet was destroyed due to over-mining its core. The third-season episode "Dark Side of the Moon" revealed that Argo City was preserved along with many of the inhabitants on an asteroid formed from Kryptonian debris. Krypton is mentioned throughout Superman & Lois. David S. Goyer developed a prequel TV series titled Krypton. The main characters are Seg-El, Adam Strange, Kem, Lyta-Zod, Val-El, Nyssa-Vex, Jayna-Zod and Dev-Em. This version of Krypton became unstable after Brainiac steals the city of Kandor in the original timeline, an event that forces Seg to stop with allies like Adam Strange from the future and even the future General Dru-Zod. This version also borrows some elements from the initial post-Crisis depiction, such as the reproduction of Kryptonians through artificial means in Genesis Chamber birthing facility. In the first season, 200 years before the birth of Kal-El, Krypton is ruled by a powerful religious figure known as Voice of Rao and the planet is divided in several guilds. Due to its decadent lifestyle of some Kryptonians, this causes a social inequality and those who are not in the guilds become Rankless. When Seg discovers that Voice of Rao is a puppet controlled by Brainiac, he forms a resistance movement of several friends and allies, including his son from the future, General Zod. After trapping Brainiac and Seg in the Phantom Zone, Zod takes power in Krypton, forcing all Rankless to become Sagitari soldiers and cutting some guilds, such as Religious and Lawmaker. In the second season, Seg returns to Krypton and gathers some of the surviving allies in order to stop Zod's murderous conquest. Zod also sends Sagitari and Doomsday weapon on the moon Wegthor to crush the rebels. After the moon is destroyed, Seg and almost all the rebels return to Krypton. When Seg and Lyta expose Zod's treachery, Zod tries to kill them, but is defeated and Sagitari forces are defeated by the resistance, ending a civil war on Krypton. Animation Krypton was very briefly depicted in the first Fleischer Studios-produced Superman cartoon in the early 1940s as "a planet that burned like a green star in the distant heavens [and where] civilization was far advanced and it brought forth a race of Supermen whose mental and physical powers were developed to the absolute peak of human perfection", implying that all Kryptonians