This series continued directly from X-Factor Vol.1 and focuses on the adventures of X-Man and former X-Factor leader Alex Summers/Havok as he is cast into an alternate time line with no way of returning to his own. Other key players are Bloodstorm, The Brute, The Fallen, Scotty Summers and Madelyne Pryor.
The series was very popular, but was canceled due to the decision of then time president of Marvel Comics, Bill Jemas. He thought that there where too many X-men related books and wanted to thin down the line. Among the cancelled comics where Bishop: the Last X-man, Gambit and Mutant X.
Mutant X had three annuals: 1999, 2000, 2001.
- Mutant X: The Complete Collection Vol. 1 (#1-17)
- Mutant X: The Complete Collection Vol. 2 (#18-32)