- Script
- Steve Ditko (scénario); Michael Fleisher (dialogue)
- Pencils
- Steve Ditko
- Inks
- Steve Ditko
- Colors
- Liz Berube
- Letters
- ?
- Job Number
- J-4548
- Genre
- science-fiction (science fiction)
- Characters
- Multiman [Rac Shade] (introduction); N-Agent Mellu Loron (introduction); Wizor (introduction); Zokag le Démolisseur (introduction); "Big Jake" Gole (introduction); Rega (introduction, meurt); Leno (introduction)
- Reprints
- Script
- Steve C. Douglas
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- typographie
- Genre
- super-héros (superhero)
- Script
- Dave Wood
- Pencils
- Jack Kirby
- Inks
- Jack Kirby ?; Roz Kirby (noirs)
- Colors
- ?
- Letters
- ?
- Genre
- aventure (adventure)
- Characters
- Challengers de l'inconnu [Ace Morgan; Prof Haley; Red Ryan; Rocky Davis]; June Robbins (introduction); Felix Hesse (introduction); ULTIVAC (introduction)
- Synopsis
- Felix Hesse, a German scientist, comes pleading to the Challengers to save him from Ultivac, "a creature of my own making... but now out of control!" He explains. Interned as a war criminal, he met Floyd Barker, a bank robber. Released, they team to build a giant machine - Suddenly a giant robot hand crashes through the window and seizes Hesse. Spouting propellers, it flies off with Hesse. The Challengers have their next job, "Track down ULTIVAC!"
- Reprints
- Script
- Jack Kirby
- Pencils
- Jack Kirby
- Inks
- Jack Kirby ?; Roz Kirby (noirs)
- Colors
- ?
- Letters
- ?
- Genre
- aventure (adventure)
- Characters
- Challengers de l'inconnu [Ace Morgan; Prof Haley; Red Ryan; Rocky Davis]; June Robbins (appelée Walker); Olan Tagorian
- Reprints