Superman II to Jor-El and General Zod. He finds Zod at the White House and tells him Superman is the son of Jor-El, their jailer, and offers to lead him to Superman in exchange for control of Australia. The three Kryptonians ally with Luthor and go to the offices of the "Daily Planet". Superman arrives, after having found the green crystal that restores his powers, and battles the three. Zod realizes Superman cares for the humans and takes advantage of this by threatening bystanders. Superman realizes the only way to stop Zod and the others is to lure them to the Fortress.
Superman II initially unavailable as he had accepted to star in the romantic fantasy film, "Somewhere in Time", five months into the production shutdown by which his contract to shoot both "Superman" films back-to-back had expired. Reeve had claimed that twelve hours after his casting was announced, he received a letter from the producers to be available for "Superman II" on July 16, which was only five days after he was to finish filming "Somewhere in Time". In March 1979, the Salkinds filed suit against Reeve alleging he had breached his contract by walking off the sequel. Furthermore, Reeve had held reservations