A new era begins for the Legion of Super-Heroes in this landmark issue, written by Jerry Siegel and illustrated by John Forte and Al Plastino, with inks by both and lettering by Milt Snapinn. When the Legionnaires suddenly lose control of their powers during a routine meeting, a mysterious figure named Urthlo takes charge—only to be exposed as a weaponized automaton sent from the past by Lex Luthor. The cover, by Evan "Doc" Shaner, captures the moment of tension with striking clarity.
Contains 27 stories
The Legion of Super-Heroes
12 pp · Superhero
Superboy [Clark Kent]Legion of Super-Heroes [Cosmic BoyLightning Lad [as Lightning Boy]Saturn Girl] (intro)Jonathan Kent (cameo)
Prisoner of the Super-Heroes
11 pp · Superhero
SuperboyLegion of Super-Heroes [Cosmic BoyLightning LadSaturn Girl]KryptoMartha KentJonathan Kent
The Three Super-Heroes!
13 pp · Superhero
SupergirlLegion of Super-Heroes [Cosmic BoyLightning LadSaturn GirlChameleon BoyColossal BoyInvisible Kid]Superman
The Army of Living Kryptonite Men!
8 pp · Superhero
SuperboyLex LuthorLana LangJonathan KentKryptoLightning LadCosmic Boy (cameo)Saturn Girl (cameo)
Lana Lang and the Legion of Super-Heroes!
13 pp · Superhero
SuperboyLana LangStar BoyLegion of Super-Heroes [Chameleon BoyLightning LadSaturn GirlCosmic Boy] (in flashback)
Supergirl's Three Super Girl-Friends!
12 pp · Superhero
Supergirl [Linda Lee]Legion of Super-Heroes [Saturn GirlPhantom Girl (intro)Triplicate Girl (intro, later Duo Damsel)Cosmic BoyLightning LadShrinking Violet (intro)Bouncing Boy (intro)Sun Boy (intro)Brainiac 5 (intro)]Brainiac (flashback)Superman (flashback)Lori LemarisJerroKrypto
Superboy's Big Brother! Part I
9 pp · Superhero
Superboy [Kal-El]Mon-El [also as Bob Cobb]Martha KentJonathan KentKrypto (cameo)Jor-El (flashback)Lara (flashback)
In "Superboy's Big Brother! Part I," Superboy takes in a mysterious, amnesiac teen he names Mon-El after a spaceship crash near Smallville, believing him to be his long-lost Kryptonian brother. As Superboy helps Mon-El adjust to life on Earth and craft a secret identity, strange clues begin to suggest Mon-El’s powers and origins may not be what they seem.
[Superboy's Big Brother! Part II] The Secret of Mon-El!
10 pp · Superhero
SuperboyMon-El [Bob Cobb] (origin)Martha KentJonathan KentLana LangMiss JoyceKing MycerinuaRhodopisJor-El (flashback)Lara (flashback)unnamed Phantom Zone prisoner (flashback)
In this gripping installment from *Legion of Super-Heroes: The Silver Age #1*, Superboy's quest to uncover the truth about Mon-El takes a dangerous turn when a well-intentioned test backfires—exposing Mon-El to lead, triggering a shocking memory return. As Mon-El's forgotten past emerges, revealing his true origins as a Daxamite explorer from a distant world, Superboy must make a desperate choice to save his friend’s life.
The Legion of Super-Villains!
11 pp · Superhero
Legion of Super-Heroes [Lightning ManCosmic ManSaturn Woman] (first Adult Legion appearance)Legion of Super-Villains [Cosmic King (intro, origin)Lightning Lord [Mekt Ranzz] (intro, origin)Saturn Queen (intro, origin)] (intro, origin, villains)Lex Luthor (villain)SupermanLois Lane (illusion)
In "The Legion of Super-Villains!" from Legion of Super-Heroes: The Silver Age #1 (2018), Lex Luthor forges a dangerous alliance with a notorious 30th-century rogues' gallery, turning the tide of history with a plan that stretches across time. When an adult Legion of Super-Heroes arrives in the 20th century to aid Superman, they find themselves facing not just a villainous coalition—but a future they never saw coming.
The Secret of the Seventh Super-Hero!
13.67 pp · Superhero
Superboy [Clark Kent]Tom Tanner (Clark Kent look-alike)Lana LangSun Boy (impostor)Legion of Super-Heroes [Cosmic BoySaturn GirlLightning LadPhantom GirlBrainiac 5Chameleon Boy]Chief ParkerSuperboy robotsMa KentLana Lang
In "The Secret of the Seventh Super-Hero!" from Legion of Super-Heroes: The Silver Age #1, a mysterious impostor claiming to be Sun Boy arrives in Smallville seeking Superboy’s help to build a powerful device. At the same time, Tom Tanner, a runaway from reform school, begins impersonating Clark Kent, throwing the town into chaos.
The Legion of Super-Traitors!
14 pp · Superhero
Superboy [Clark Kent]Lana Lang, Jonathan KentMartha KentLegion of Super-Heroes [Lightning LadCosmic BoySaturn Girl]Jax-Ur (in the Phantom Zone)General Zod (in the Phantom Zone)Mon-El (in the Phantom Zone)two unnamed Phantom Zone prisonersLegion of Super-Pets (first appearance) [KryptoStreakyBeppo the Super-MonkeyComet the Super-Horse (first appearance)]Brain Globes of Rambat
Supergirl's Greatest Challenge!
14 pp · Superhero
Supergirl [Linda Danvers]Lois LaneLegion of Super-Heroes [Cosmic Boy [Rokk Krinn]Lightning Lad [Garth Ranzz]Saturn Girl [Imra Ardeen]Sun Boy [Dirk Morgna]Bouncing Boy [Chuck Taine]]Whizzy (descendant of Streaky)Positive ManChameleon MenFred DanversEdna DanversStreaky
Superman's Super-Courtship!
12 pp · Superhero
Supergirl [Linda Danvers]SupermanLuma LynaiHelen of TroyRhondousadult Legion of Super-Heroes [Cosmic ManPhantom WomanChameleon ManTriplicate WomanSun ManSaturn WomanBrainiac 5Lightning Man]Fred DanversEdna Danvers
In "Superman's Super-Courtship!," Supergirl takes it upon herself to help her cousin find love, setting him up with legendary figures like Helen of Troy, Saturn Woman, and Luma Lynai of Staryl—only to learn that even with cosmic matchmaking, some things are best left to fate.
The Boy with Ultra-Powers!
13 pp · Superhero
Ultra-Boy [Jo NahGary Crane] (introorgin)Superboy [Clark Kent]Martha KentMarla [Ben Crane]Pete RossJonathan KentSuperboy robotsKryptoLana LangE. W. Lemley
The Face Behind the Lead Mask!
11.66 pp · Superhero
Legion of Super-Heroes [Cosmic BoySaturn GirlLightning LadSun BoySuperboyChameleon Boy (statue)Bouncing Boy (statue)Shrinking Violet (statue)Invisible Kid [Lyle Norg] (statue)]Lex LuthorUrthloMon-El
In "The Face Behind the Lead Mask!", the Legion of Super-Heroes faces a shocking crisis when their powers suddenly fail—only to be seized by an unknown force. With the team paralyzed and their leader in peril, Saturn Girl races to craft a cure while Superboy makes a daring move to free Mon-El from the Phantom Zone, uncovering a chilling truth behind the attack.
The Secret Origin of Bouncing Boy!
12.67 pp · Superhero
Legion of Super-Heroes [Bouncing BoySun BoyCosmic BoyShrinking VioletLightning LadChameleon BoySaturn GirlTriplicate GirlColossal BoyPhantom GirlUltra Boy]
Sun-Boy's Lost Power!
11.67 pp · Superhero
Legion of Super-Heroes [Sun BoyCosmic BoySaturn GirlSuperboyUltra BoyBouncing Boy]Pete Ross
The Fantastic Spy!
11.67 pp · Superhero
Legion of Super-Heroes [Cosmic BoySaturn GirlSun BoyLightning LadBrainiac 5Matter-Eater LadBouncing BoyChameleon BoyShrinking VioletSuperboy]Dr. Landro
The Stolen Super-Powers!
11 pp · Superhero
Legion of Super-Heroes [Shrinking VioletBouncing BoySun BoyCosmic BoyChameleon BoyColossal BoySaturn GirlTriplicate GirlBrainiac 5Invisible KidMatter-Eater LadLightning LadUltra BoyMon-ElSuperboySupergirl]Lori LemarisZaryan the Conqueror
The Secret of the Mystery Legionnaire!
11.67 pp · Superhero
Legion of Super-Heroes [Sun BoyShrinking VioletBouncing BoyCosmic BoyMon-El [as Marvel Lad, the Legionnaire Lemon]Saturn GirlCosmic BoyLightning LadColossal BoyBrainiac 5Superboy (in flashback)]
The Legion of Substitute Heroes!
14 pp · Superhero
Legion of Super-Heroes [Sun BoyCosmic BoySaturn GirlChameleon BoyBouncing BoyColossal BoyBrainiac 5Shrinking Violet]Legion of Substitute Heroes [Polar BoyNight GirlStone BoyFire LadChlorophyll Kid]
The Secret Power of the Mystery Super-Hero!
13 pp · Superhero
Legion of Super-Heroes [Cosmic BoySaturn GirlBouncing BoySun BoyBrainiac 5Invisible KidColossal Boy]Element Lad [as Mystery Lad]Roxxas
The Return of Lightning Lad!
10.67 pp · Superhero
Legion of Super-Heroes [Cosmic BoySaturn GirlLightning Lass [as Lightning Lad]Bouncing BoyChameleon BoySun BoyMon-ElLightning Lad (in flashback and lying in state)Shrinking VioletSupergirlBrainiac 5]Proty
The Legion of Super-Monsters! Part I
8.66 pp · Superhero
Legion of Super-Heroes [Brainiac 5 [Querl Dox]Bouncing Boy [Chuck Taine]Saturn Girl [Imra Ardeen]Sun Boy [Dirk Morgna]Chameleon Boy [Reep Daggle]Mon-El [Lar Gand]Colossal Boy [Gim Allon]Ultra Boy [Jo Nah]Matter-Eater Lad [Tenzil Kem] (cameo)Shrinking Violet [Salu Digby] (cameo)Superboy [Kal-ElClark Kent] (cameo)Triplicate Girl [Lournu Durgo] (cameo)Invisible Kid [Lyle Norg] (cameo)Cosmic Boy [Rokk Krinn] (cameo)]Rainbow GirlJungle King [Monster Master]Legion of Super-Monsters [Earthquake BeastEye-MonsterMirror MonsterDrill BeastOmnibeast]
Part II The Legion's Super-Showdown!
7.67 pp · Superhero
Legion of Super-Heroes [Brainiac 5 [Querl Dox]Bouncing Boy [Chuck Taine]Saturn Girl [Imra Ardeen]Sun Boy [Dirk Morgna]Chameleon Boy [Reep Daggle]]Jungle King [Monster Master] (death)Legion of Super-Monsters [Earthquake BeastEye-MonsterMirror MonsterDrill BeastOmnibeast]gas creature
The Doom of the Super-Heroes!
8.67 pp · Superhero
Legion of Super-Heroes [Cosmic BoySaturn GirlBouncing BoyChameleon BoyTriplicate Girl (cameo)Brainiac 5Star Boy (cameo)SuperboyUltra BoyColossal Boy (cameo)Element Lad (cameo)Invisible KidLightning LassSun BoyShrinking Violet]Mxyzptlk V [as Mask Man]
Part II: Last Stand of the Legion!
7.67 pp · Superhero
Legion of Super-Heroes [SuperboyColossal BoyInvisible KidSaturn GirlBouncing BoySun BoyMon-ElCosmic BoyColossal BoyBrainiac 5Lightning Lass]Mxyzptlk V [as Mask Man]
