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Can Superboy somehow find a way to survive when Black Zero traps him in a room inhabited by an army of Doomsday clones? Plus, a long-time supporting cast member makes the ultimate sacrifice. 'Hyper-Tension' part 4.

Losin' It' part 6 is the stunning conclusion to Superboy's mind-bending arc! Has the Teen of Steel finally lost his mind? And has Knockout finally revealed her true colors?

Superboy is in for the fight of his life when Sledge washes up on the shores of Hawaii, looking to kick some major butt!

Superboy returns to the destroyed watery lair of Dragon to make sure the menace of King Shark has not returned, but a misunderstanding sets the Teen of Steel against the JLA's Green Lantern Kyle Rayner!

Meltdown' Part 1! After having his DNA tampered with to create Match, Superboy's cellular structure is breaking down—and there might not be a cure!

Sins of Youth" part 2 of 12, continued from SINS OF YOUTH: YOUNG JUSTICE #1. Since Superboy's clone body cannot age, he is the only one not affected by the aging process the other members of Young Justice have been exposed to. But a deadly side effect may sideline him and keep him from taking on his malevolent doppelganger, Match, for the right to be Superboy. Continued in SINS OF YOUTH: SECRET FILES.

Can the Kid somehow find a way to defeat his most dangerous adversary, Black Zero, or will this powerful new villain be able to reshape Hypertime to match his own twisted vision? 'Hyper-Tension' part 5.

Superboy continues his trek trough Hypertime and comes face to face with his most dangerous adversary yet: Black Zero. This malevolent doppelganger's power may surpass even a Legion of Superboys! 'Hyper-Tension' part 3.

World Without Young Justice' part 4, continued from ROBIN #101. The monster known as Doomsday once killed the Man of Steel. Is it now the Teen of Steel's turn to meet his maker? Who—or what—is Doomsboy, and what does his presence mean? Concluded in YOUNG JUSTICE #45!