Superman (1948)

Atom Man Appears! (2x2)

Air date: Jul 27, 1950

Since Kryptonite can rob Superman of his powers, Luthor decides to create a synthetic Kryptonite and putters about obtaining the necessary ingredients: plutonium, radium and the undefined 'etc.' Luthor places the Kryptonite at the launching of a ship, with Superman in attendance.