- Script
- Stan Lee; Jani Büsing (Übersetzung)
- Pencils
- Jack Kirby (layouts); Werner Roth (credited as Jay Gavin) (pencils)
- Inks
- Dick Ayers
- Colors
- ?
- Letters
- ?
- Genre
- Superhelden (superhero)
- Characters
- The X-Men [Professor X; Cyclops; Marvel Girl [Jean Grey]; Angel; Beast (Origin); Iceman]; Sentinels; Master Mold; Dr. Bolivar Trask; Edna McCoy; Norton McCoy
- Synopsis
- The X-Men invade the Sentinel's underground complex but are captured. Beast is taken before the Sentinel's leader, Master Mold, and has his mind probed. Master Mold commands Trask to make an army of Sentinels so they can take over the world.
- Reprints
Teil 1 des Reprints, fortgesetzt in Der gewaltige Hulk #33