The Conquest Of Superman! * Lex Luthor Appearance A disaster erupts while Superman is off-planet. Having nowhere else to turn, the authorities free Lex Luthor from prison so he might aid them in preventing an airplane carrying a hydrogen bomb from crashing. Luthor uses anti-gravity equipment to save the plane, but then turns it on the police so that they cannot return him to prison. Afterwards, he returns to the Luthor Lair to plan his next scheme against Superman. Luthor uses his proprietary technology to rob the federal gold reserve from Fort Knox. Superman arrives on the scene, but Luthor scares him off with Kryptonite. Back at his lair, Luthor laughs over the fact that the Kyrptonite he used was fake. But his victory is short lived however, as he discovers that the foe he defeated was actually one of Superman's robots. Enraged over the hollow victory, Lex returns all of the gold to Fort Knox.