Superman: Earth One its collapse. Zod addresses the United Nations, stating that the House of El caused the planet Krypton to explode, and that Superman is a threat. Zod persuades the delegates that he is an ally and wants to help them kill Superman. Lois receives a phone call from her uncle and learns that Zod is responsible for the bridge's collapse, after which she tries to warn Superman. Zod reveals that he possesses a supply of kryptonite in his ship, from whose radiation his lead-lined skin-suit protects him. He intends to kill Superman, but Superman uses his knowledge of chemistry to cause
Superman (serial) the staff of the "Daily Planet" in order to be close to the news. Soon after he is sent out to get the scoop on a new rock that a man has found that he calls Kryptonite, and Clark passes out; then and there Superman discovers that his weakness is Kryptonite. Whenever emergencies happen, he responds in his true identity as Superman. This first serial revolves around the nefarious plot of a villain who calls herself the Spider Lady. Republic Pictures tried twice to produce a Superman serial. The first attempt was replaced by "Mysterious Doctor Satan" (1940), when licensing