- Script
- Chris Claremont
- Pencils
- Dave Cockrum (loose blue pencils); Bob Wiacek (finished art); Joe Rubinstein (credited as Josef Rubinstein) (finished art)
- Inks
- Bob Wiacek (pages 1-10); Joe Rubinstein (pages 11-22)
- Colors
- Don Warfield (credited as D. Warfield)
- Letters
- Joe Rosen
- First Line of Dialogue or Text
- My point!
- Genre
- superhero
- Characters
- X-Men [Professor X; Cyclops [Scott Summers] (origin); Storm; Wolverine [Logan]; Colossus; Nightcrawler; Sprite [Kitty Pryde]]; Corsair [Major Christopher Summers] (guest, origin); Peter Corbeau (guest); Carol Danvers [formerly Ms. Marvel] (guest); Illyana Rasputin (guest); Phil (guest); Roy (guest); Neville (guest); Gino (guest); Lou (guest); The Sidrian Hunters (villains, first appearance; death); Starjammers [Hepzibah; Raza; Ch'od] (cameo flashback); Anne Summers (cameo flashback); Majestrix Lilandra (cameo flashback); Chancellor Araki (cameo flashback); Admiral Lord Samedar (cameo flashback); Shi'ar (cameo flashback)
- Synopsis
- Corsair comes to Earth seeking the X-Men's help. Corsair is Cyclops' father.
- Reprints
- in Spécial Strange (Editions Lug, 1975 series) #42 (10 décembre 1985)
- in Superaventuras Marvel (Editora Abril, 1982 series) #59 (8 Maio 1987)
- in Die Gruppe X (Condor, 1988 series) #1 [Nur 9 Seiten wurden hier abgedruckt. Fortsetzung folgt in Heft 2.], #2 [2 Seiten wurden ausgelassen: Seiten 16 + 18 der Story]
- in L'Uomo Ragno (Edizioni Star Comics, 1987 series) #40 (16 Gennaio 1990), #41 (30 Gennaio 1990)
- in X-Men Classic (Marvel, 1990 series) #58 (April 1991)
which is reprinted- in Essential X-Men (Marvel, 1996 series) #3 (July 1998) [black and white]
- in Marvel Masterworks: The Uncanny X-Men (Marvel, 2003 series) #7 ([January] 2011)
- in Marvel Gold. La Imposible Patrulla-X (Panini España, 2011 series) #3 - Vs. Magneto (Noviembre 2012)
- in The Uncanny X-Men Omnibus (Marvel, 2006 series) #3 (2016)
Inker page credits added 2005 by Steven Tice. Dave Cockrum reports 2006 that "I did loose pencils in blue. Editor Ann Nocenti referred to them as 'shakedowns'. But everything was there."
- Script
- ?
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- typeset
- Characters
- X-Men [Nightcrawler; Storm; Colossus; Wolverine [Logan]; Sprite [Kitty Pryde]; Cyclops]
- Reprints
Letters from Mark "Spike" Schussler, Ryan Scott, Beverly Ramsgate, David Christopher, Donna L., and Rory K. Gibbons. Included is a small illustration of the heads of the X-Men.