The planet Krypton faces imminent destruction due to its unstable core, resulting from years of exploiting Krypton's natural resources. The ruling council is deposed by the rebel military leader, General Zod, and his followers. Scientist Jor-El and his wife Lara launch their newborn daughter Kira-El on a spacecraft to Earth, infusing her cells with a genetic codex to preserve the Kryptonian race. After Zod murders Jor-El, he and his followers are captured and banished to the Phantom Zone. However, Krypton explodes some time afterwards, freeing them.
