| 0 | - | cover | 1 | pencils: Mike Deodato Jr.; inks: Mike Deodato Jr.; colors: Jão Canola | Challengers of the Unknown [Red Ryan [Matthew Ryan]; Prof Haley [Walter Haley]; June Robbins; Rocky Davis [Leslie Davis]; Ace Morgan]; Batman [Bruce Wayne]; Superman [Clark Kent; Kal-El]; Wonder Woman [Diana of Themyscira] |
| 1 | - | cover reprint (on interior page) | 1 | pencils: Dan Mora; inks: Dan Mora; colors: Dan Mora | Superman [Clark Kent; Kal-El]; Batman [Bruce Wayne]; Robin [Dick Grayson]; Metamorpho [Rex Mason]; Bumblebee [Karen Beecher]; Challengers of the Unknown [Ace Morgan; Rocky Davis; Prof Haley; Red Ryan] |
| 2 | - | cover reprint (on interior page) | 1 | pencils: Dan Mora; inks: Dan Mora; colors: Dan Mora | Batman [Bruce Wayne]; Superman [Clark Kent; Kal-El]; Wonder Woman [Diana of Themyscira] |
| 3 | Time Check | comic story | 10 | script: Christopher Cantwell; pencils: Jorge Fornés; inks: Jorge Fornés; colors: Lee Loughridge; letters: Steve Wands | Challengers of the Unknown [Ace Morgan; Rocky Davis; Prof Haley; Red Ryan]; June Robbins; Ultivac; Dr. Elias |
| 4 | - | cover reprint (on interior page) | 1 | pencils: Mike Deodato Jr.; inks: Mike Deodato Jr.; colors: Jão Canola | Challengers of the Unknown [Red Ryan [Matthew Ryan]; Prof Haley [Walter Haley]; June Robbins; Rocky Davis [Leslie Davis]; Ace Morgan]; Batman [Bruce Wayne]; Superman [Clark Kent; Kal-El]; Wonder Woman [Diana of Themyscira] |
| 5 | - | cover reprint (on interior page) | 1 | pencils: Taurin Clarke; inks: Taurin Clarke; colors: Taurin Clarke | Batman [Bruce Wayne]; Wonder Woman [Diana of Themyscira]; Superman [Clark Kent; Kal-El]; Challengers of the Unknown [Red Ryan; Prof Haley; Ace Morgan; Rocky Davis] |
| 6 | The Secret Life of Ace Morgan | comic story | 22 | script: Christopher Cantwell; pencils: Sean Izaakse; inks: Sean Izaakse; colors: Romulo Fajardo Jr.; letters: Hassan Otsmane-Elhaou | Challengers of the Unknown [Ace Morgan; June Robbins; Prof Haley [Walter Haley]; Red Ryan [Matthew Ryan]; Rocky Davis [Leslie Davis]]; The Captain [Billy Batson]; Green Lantern [Hal Jordan]; Miss Martian [M'gann M'orzz]; Mister Terrific [Michael Holt]; Superman [Clark Kent; Kal-El]; Darkseid [Uxas]; |
| 7 | - | cover reprint (on interior page) | 1 | pencils: Sean Izaakse; inks: Sean Izaakse; colors: Romulo Fajardo Jr. | Challengers of the Unknown [Ace Morgan; June Robbins; Red Ryan [Matthew Ryan]; Prof Haley [Walter Haley]; Rocky Davis [Leslie Davis]]; Batman [Bruce Wayne] |
| 8 | Mother June | comic story | 22 | script: Christopher Cantwell; pencils: Jorge Fornés, Sean Izaakse, Amancay Nahuelpan; inks: Jorge Fornés, Sean Izaakse, Amancay Nahuelpan; colors: Romulo Fajardo Jr., Matt Herms; letters: Hassan Otsmane-Elhaou | Challengers of the Unknown [Ace Morgan; June Robbins; Prof Haley [Walter Haley]; Red Ryan [Matthew Ryan]; Rocky Davis [Leslie Davis]]; Mister Terrific [Michael Holt]; Batman [Bruce Wayne]; Aquaman [Arthur Curry]; Ultivac; Sea Devils [Biff Bailey; Dane Dorrance; Judy Walton; Nicky Walton]; Felix Hess |
| 9 | - | cover reprint (on interior page) | 1 | pencils: Sean Izaakse; inks: Sean Izaakse; colors: Romulo Fajardo Jr. | Prof Haley [Walter Haley]; The Atom [Ray Palmer] |
| 10 | - | cover reprint (on interior page) | 1 | pencils: Christian Ward; inks: Christian Ward; colors: Christian Ward | Challengers of the Unknown; Batman [Bruce Wayne] |
| 11 | Prof's Herophany | comic story | 22 | script: Christopher Cantwell; pencils: Sean Izaakse, Amancay Nahuelpan; inks: Sean Izaakse, Amancay Nahuelpan; colors: Romulo Fajardo Jr.; letters: Hassan Otsmane-Elhaou | Challengers of the Unknown [Ace Morgan; June Robbins; Prof Haley [Walter Haley]; Red Ryan [Matthew Ryan]; Rocky Davis [Leslie Davis]]; Anthro; Embra; The Atom [Ray Palmer]; The Atom [Ryan Choi]; Batman [Bruce Wayne]; Blue Beetle [Jaime Reyes]; Blue Beetle [Ted Kord]; Cyborg [Victor Stone]; Mister Te |
| 12 | - | cover reprint (on interior page) | 1 | pencils: Sean Izaakse; inks: Sean Izaakse; colors: Romulo Fajardo Jr. | Red Ryan [Matthew Ryan]; Green Lantern [Hal Jordan] |
| 13 | - | cover reprint (on interior page) | 1 | pencils: Phil Hester; inks: Phil Hester; colors: Ryan Cody | Challengers of the Unknown [Prof Haley [Walter Haley]; Red Ryan [Matthew Ryan]; Rocky Davis [Lester Davis]; June Robbins; Ace Morgan]; Superman [Clark Kent; Kal-El]; Green Lantern [Hal Jordan]; Batman [Bruce Wayne]; Wonder Woman [Diana of Themyscira] |
| 14 | Red & Green | comic story | 22 | script: Christopher Cantwell; pencils: Sean Izaakse, Amancay Nahuelpan; inks: Sean Izaakse, Amancay Nahuelpan; colors: Romulo Fajardo Jr.; letters: Hassan Otsmane-Elhaou | Challengers of the Unknown [Ace Morgan; June Robbins; Prof Haley [Walter Haley]; Red Ryan [Matthew Ryan]; Rocky Davis [Leslie Davis]]; The Atom [Ray Palmer]; The Atom [Ryan Choi]; Batman [Bruce Wayne]; Captain Comet [Adam Blake]; Green Lantern [Hal Jordan]; Mister Terrific [Michael Holt]; Superman [ |
| 15 | - | cover reprint (on interior page) | 1 | pencils: Sean Izaakse; inks: Sean Izaakse; colors: Romulo Fajardo Jr. | Wonder Woman [Diana of Themyscira]; Rocky Davis [Leslie Davis]; Ultivac |
| 16 | - | cover reprint (on interior page) | 1 | pencils: Jorge Fornés; inks: Jorge Fornés; colors: Jorge Fornés | |
| 17 | Rock & a Hard Place | comic story | 22 | script: Christopher Cantwell; pencils: Sean Izaakse, Amancay Nahuelpan; inks: Sean Izaakse, Amancay Nahuelpan; colors: Romulo Fajardo Jr.; letters: Hassan Otsmane-Elhaou | Challengers of the Unknown [Ace Morgan; June Robbins; Prof Haley [Walter Haley]; Red Ryan [Matthew Ryan]; Rocky Davis [Leslie Davis]]; The Atom [Ray Palmer]; The Atom [Ryan Choi]; Batman [Bruce Wayne]; Doctor Midnight [Beth Chapel]; Green Lantern [Hal Jordan]; Mister Terrific [Michael Holt]; Superma |