Bizarro, an imperfect duplicate of Superboy, is accidentally created when the real Superboy steps in front of Professor Peterson's new duplicating ray.

Superboy battles to free Lana from Bizarro while Prof. Peterson uses his duplicating ray on kryptonite to create Bizarro Kryptonite with the hope that it will end the Bizarro menace.

Bizarro returns from deep space and enters into a deadly pact with Lex Luthor. Lex will "create" a bride for Bizarro in exchange for a supply of kryptonite which can kill Superboy.

Bizarro has fallen deeper into Lex Luthor's plot to kill Superboy in exchange for a bride.

A rip in the time continuum has unleashed a wave of deadly creatures. When a prominent movie producer is killed, Superboy must investigate and ultimately fight for his life as the monsters attack.

While trying to help Bizarro with his depression, Superboy's powers are weakened, leaving him vulnerable to the evil villain Chaos, who plans to destroy him once and for all.

Superboy's secret identity is challenged in "Who Is Superboy?"

Lex Luthor has just hit Superboy with a deadly kryptonite bomb. Now he gloriously recounts in detail how he planned and executed the devious plan, which he feels certain has killed Superboy.