Genaral Zod is a former Kryptonian military general who was exiled to the Phantom Zone for treason. Following Krypton's destruction Zod and fellow exiled kryptonian Ursa along with their son, Lor-Zod, escaped the Phantom Zone and launched an attack on the Earth city Metropolis in search of Jor-El's son, Kal-El. However, after Superman allied with Lex Luthor he foiled Zod's plan and Zod has been an enemy of Superman ever since.