 As Jor-El attempts to warn the Science Council of their folly, General Zod stages a coup.In hopes of preserving the Kryptonian race, Jor-El steals the genetic Codex of the planet (a list holding the DNA pattern of everyone yet to be born on Krypton) and infuses it into the cells of Kal-El, the first natural-born child on Krypton in centuries, and sends his son to Earth.Zod kills Jor-El and is arrested by the authorities.