Characters

• Challengers of the Unknown [Rocky Davis
• Red Ryan
• Prof Haley
• Ace Morgan]
• Superman
• Legion of Super-Villains [Lightning Lord
• Saturn Queen
• Cosmic King]

Credits

• Pencils: Keith Giffen
• Inks: Frank Giacoia
• Colors: Anthony Tollin
• Letters: Gaspar Saladino

Credits

• Script: Carl Gafford (uncertain)

Storyline

Retelling of the origin of the Challengers continues.

Characters

• Challengers of the Unknown [Rocky Davis
• Ace Morgan
• Red Ryan
• Prof Haley]

Credits

• Script: Bob Rozakis
• Pencils: George Tuska
• Inks: Andy Mushynsky
• Colors: Carl Gafford
• Letters: Milt Snapinn

Storyline

When a space ship crashes outside Smallville, Superboy finds an amnesiac super-powered youth who might be his older brother. He christens him Mon-El and sets him up with a secret identity, but he soon finds evidence that Mon-El is not in fact Kryptonian.

Characters

• Superboy [Kal-El]
• Mon-El [also as Bob Cobb]
• Martha Kent
• Jonathan Kent
• Krypto (cameo)
• Jor-El (flashback)
• Lara (flashback)

Credits

• Script: Robert Bernstein
• Pencils: George Papp
• Inks: George Papp
• Colors: Jerry Serpe
• Letters: Joe Letterese
• Editing: Mort Weisinger

Storyline

Trying to prove Mon-El isn't actually Kryptonian, Superboy accidentally exposes him to lead, which both poisons him and returns his memory. He remembers that he is a space explorer from Daxam named Lar Gand, who visited Krypton, meeting Jor-El and Lara, before arriving on Earth. To save his life, Superboy sends Lar Gand into the Phantom Zone until he can cure him of his lead poisoning.

Characters

• Superboy
• Mon-El [Bob Cobb
• Lar Gand] (origin)
• Martha Kent
• Jonathan Kent
• Lana Lang
• Miss Joyce
• King Mycerinua
• Rhodopis
• Jor-El (flashback)
• Lara (flashback)
• Phantom Zone

Credits

• Script: Robert Bernstein
• Pencils: George Papp
• Inks: George Papp
• Colors: Jerry Serpe
• Letters: Joe Letterese
• Editing: Mort Weisinger

Storyline

Aqualad continues the search for Mera while Aquaman is temporarily sidelined.

Characters

• Aqualad
• Aquaman
• Aquagirl
• Vulko
• Phil Darson

Credits

• Script: Steve Skeates
• Pencils: Jim Aparo
• Inks: Jim Aparo
• Colors: Bob LeRose
• Letters: Jim Aparo
• Editing: Dick Giordano

Storyline

The living embodiment of Fear causes trouble for Captain Marvel by stirring up a panic with rumors about an atomic bomb in the city.

Characters

• Captain Marvel [Billy Batson]
• Fear
• Dr. Carl de Reine
• Sterling Morris (cameo)

Credits

• Pencils: Pete Costanza
• Inks: Pete Costanza
• Colors: Nansi Hoolahan
• Editing: Wendell Crowley (uncertain)

Storyline

Lex Luthor presumes that the existence of the Legion of Super-Heroes in the future requires a legion of super-villains as well and manages to contact them from his prison cell. They travel into the "past" to free him, and join forces to destroy Superman. However, he foils their plans by removing Saturn Queen's criminal tendencies.

Characters

• Superman
• Lex Luthor
• Legion of Super-Villains [Cosmic King
• Lightning Lord
• Saturn Queen]
• Legion of Super-Heroes [Lightning Man (Adult Lightning Lad)
• Cosmic Man (Adult Cosmic Boy)
• Saturn Woman (Adult Saturn Girl)]

Credits

• Script: Jerry Siegel
• Pencils: Curt Swan
• Inks: Sheldon Moldoff
• Colors: Jerry Serpe
• Letters: Milt Snapinn
• Editing: Mort Weisinger

Storyline

The use of an experimental anesthetic on a sniper-shot ambassador causes him to be possessed by his ancestor, an 18th century pirate named Captain Skull who has received strong supernatural powers in the process. Only the Spectre can stand against him.

Characters

• The Spectre [Jim Corrigan]
• Captain Skull

Credits

• Script: Gardner Fox
• Pencils: Murphy Anderson
• Inks: Murphy Anderson
• Colors: Jerry Serpe
• Letters: Gaspar Saladino
• Editing: Julius Schwartz

Storyline

Paul Levitz gives background information about the Legion-oriented reprints in this issue.

Credits

• Script: Paul Levitz

Storyline

One panel each previewing the four stories in this issue that were not depicted on the front cover.

Characters

• Captain Marvel
• Superboy
• Mon-El
• Aqualad
• Spectre

Credits

• Script: Carl Gafford (uncertain)
• Pencils: Keith Giffen
• Inks: Romeo Tanghal
• Letters: Gaspar Saladino