- Script
- Roy Thomas
- Pencils
- Neal Adams
- Inks
- Tom Palmer
- Colors
- Neal Adams
- Letters
- ?
- Genre
- super-héros (superhero)
- Characters
- X-Men [Cyclops [Scott Summers]; Marvel Girl [Jean Grey]; Angel [Warren Worthington III]; Iceman [Bobby Drake]; Beast [Hank McCoy]]; Havok [Alex Summers] (first in costume); Lorna Dane [Polaris]; Banshee [Sean Cassidy]; Mesmero; Magneto Robot (destroyed); Living Monolith [Ahmet Abdol]; Larry Trask (villain); Judge Chalmers (villain); Sentinels (villains)
- Synopsis
- Sentinels attack Beast and Iceman and Bobby sacrifices himself so that Hank can escape. Angel flies back to the states with Cyclops and Jean following close behind. Iceman is taken to Trask's Sentinel base where he meets up with Lorna and Alex, now called Havok with a containment suit built by Trask. Sentinels gather mutants from around the world and bring them to Trask. Fearful of Larry's methods, Chalmers takes the medallion from around his neck and the Sentinels refuse to follow their master as he is revealed to be a mutant.
- Reprints
Havok appears for the first time in a costume provided by Larry Trask to help Alex control his mutant abilities.