249. "The Kryptonite Man", "The Man-Ape's Mountain Mission", "The Gambling Asteroid"

When Lex Luthor comes up with a solution that makes him radiate Green Kryptonite rays, he dubs himself the "Kryptonite Man" and goes on a mission to destroy Superman. Attracting the Man of Steel's attention by smashing a statue, Superman goes into action, and is shocked when his old nemesis turns out to be expelling Kryptonite radiation from his body.