The original 1960s X-Men team - reunited with a new team and a new mission! When Jean Grey returns from a watery grave, the original X-Men reunite - as X-Factor! But for Marvel Girl, Cyclops, Beast, Angel and Iceman, posing as a mutant-hunting organisation gets complicated fast! And things get worse when the ageless villain Apocalypse makes the scene! Then, when X-Factor is drawn into the chaos of the Mutant Massacre, Angel suffers a grievous injury... and will be changed forever! As X-Factor rescues young mutants including Leech, Boom-Boom and Rictor, the Beast undergoes a radical metamorphosis, Iceman battles alongside Thor, tragedy pushes Cyclops to the brink of insanity - and a traitor stalks the team from within! Will Apocalypse's Four Horsemen put the final nail in X-Factor's coffin? Collecting: Avengers (1963) 263; Fantastic Four (1961) 286; X-Factor (1986) 1-26; X-Factor Annual (1986) 1-2; Iron Man Annual (1970) 8; Amazing Spider-Man (1963) 282; Thor (1966) 373-374, 377-378; Power Pack (1984) 27, 35; Mephisto Vs. (1987) 2; Incredible Hulk (1968) 336-337; Classic X-Men (1986) 8, 43; Secret Wars II (1985) 5; material from Marvel Fanfare (1982) 40.