Superboy: A Celebration of 75 Years #[nn]

In a desperate race against time, Jor-El races to save his son as Krypton teeters on the brink of destruction, entrusting the infant Clark Kent to a vessel bound for Earth—where he will grow up under the care of Ma and Pa Kent, far from the doomed world of his birth.

In a heartwarming twist of fate, Superboy is stunned when a super-powered dog arrives in Smallville in a rocket marked with Kryptonian records proving he’s the test subject Jor-El once used to develop his spacefaring technology—his long-lost puppy, Krypto. Though thrilled to reunite with his canine companion, Superboy must keep a close eye on Krypto’s antics as the dog’s boundless energy and accidental displays of power threaten to expose his secret identity. With Lana Lang nearby and memories of Krypton’s past lingering in the background, the pair navigate the chaos of a small-town summer—where even a dog’s leap into the sky could change everything.

Superboy is approached by three future teens—Cosmic Boy, Lightning Lad, and Saturn Girl—offering him a spot in the Legion of Super-Heroes. When he fumbles through a series of seemingly simple challenges, the Legion pretends to reject him, only to reveal the trials were all part of a playful initiation. Jonathan Kent makes a brief cameo, watching from the shadows as Superboy learns that heroism isn’t just about power, but how you handle the test.

In this 13-page tale from *Superboy: A Celebration of 75 Years*, a young Lex Luthor and Superboy begin as unlikely friends, bonding over science and dreams—until a well-meaning accident shatters the lab and sends Lex’s hair flying, sparking a rivalry that will shape the future. With the Kents watching from the sidelines and Krypto at Superboy’s side, the spark of a lifelong feud ignites in the quiet of Smallville.

When a spaceship crashes near Smallville, Superboy discovers an amnesiac teen with powers eerily like his own—so he calls him Mon-El and helps him build a new life. But as clues begin to surface, Superboy starts to wonder if his new "brother" is truly Kryptonian—or something far more mysterious.

In a twist that shakes his trust in his friend, Superboy’s attempt to prove Mon-El isn’t Kryptonian backfires when exposure to lead triggers long-buried memories—revealing Mon-El is actually a Daxamite explorer who once visited Krypton and knew Jor-El and Lara. With Mon-El dying from the poison, Superboy must make a desperate choice: send him into the Phantom Zone to survive, even as the truth of his origins unravels.

When a gangster takeover threatens Smallville, the Legion of Super-Heroes steps in—only to find their usual retreat into anonymity no longer an option. As the townspeople rally behind them, the Legion must decide whether to stay and protect the town or return to the future to face Mordru, who’s closing in on their location.

In "The Devil's Jury!", Superboy and his Legion teammates—Shadow Lass, Mon-El, and Duo Damsel—find themselves hunted after Mordru strips them of their memories and traps Smallville in isolation. With the town cut off and an army closing in, it’s up to Pete Ross to help Superboy remember who he is before the past truly vanishes.

When Prof. Jaxon Rugarth volunteers for a time travel experiment at the Time Institute, he emerges transformed into the Infinite Man—a being who can summon any creature from any era to wage war on the Legion of Super-Heroes and their ally Rond Vidar. Now hunted across time and space, the Legion must face an enemy who draws power from history itself, while the origins of the Infinite Man’s madness remain shrouded in mystery.

In "Psycho War," the Legion of Super-Heroes faces off against the tormented Psycho-Warrior, a man whose mind was shattered by a space accident and now wields terrifying psychic powers. As the battle unfolds, the villain forces Superboy to witness a vision of his parents' deaths—though the memory will fade when he returns to the 20th Century, the trauma will linger with every future return. To protect him, Saturn Girl makes a difficult choice, embedding a hypnotic command that will ensure Superboy never joins the Legion again.

In "Year of the Comet," Superman from Earth-1 is hurled into Earth-Prime by the Superman Revenge Squad, landing in the midst of a world where his younger self—Superboy—has just begun to embrace his powers. With the help of Laurie Lemmon, Jerry Kent, and Naomi Kent, the older Superman must navigate a reality on the brink, all while racing against time to return to Earth-1 before the Crisis consumes Earth-Prime.

In "Touchdown," the fate of the multiverse hangs in the balance as Alex, driven by a vision of a perfect Earth, begins merging and destroying alternate realities—each attempt a step toward his twisted ideal. With Superboy-Prime locked in battle and the heroes fractured, the fight becomes less about stopping a villain and more about what kind of world they’re willing to save.

In a tense moment that bridges past and present, Superboy [Conner Kent] reunites with Wonder Girl [Cassandra Sandsmark] for the first time since his return, while Lex Luthor and Brainiac work in shadowy alliance to reclaim Kandor—offering Earth as a price. With Martha Kent and Jonathan Kent’s memory lingering in a photograph, and Krypto at his side, Conner must navigate a fragile alliance as the weight of legacy and duty presses in.

In the climactic conclusion of "Son of Superman," Superman’s long-standing conflict with the Eradicator reaches its breaking point when Krypto’s presence within the villain finally breaks his hold. With the battle witnessed across Earth, Superman must now face the reality of going public—just as his son, Jon Smith, prepares to step into the light as the new Superboy, a truth he must keep hidden from the world while revealing it to Batman and Wonder Woman.