X-Men: 5x12
Descent
The origin of Mr. Sinister.
5 - 1The Phalanx Covenant (1) Sep. 07, 1996
5 - 2The Phalanx Covenant (2) Sep. 07, 1996
5 - 3A Deal with the Devil Sep. 14, 1996
5 - 4No Mutant Is an Island Sep. 21, 1996
5 - 5Longshot Oct. 05, 1996
5 - 6Bloodlines Oct. 26, 1996
5 - 7Storm Front (1) Nov. 02, 1996
5 - 8Storm Front (2) Nov. 09, 1996
5 - 9Jubilee's Fairytale Theatre Nov. 16, 1996
5 - 10The Fifth Horseman Feb. 08, 1997
5 - 11Old Soldiers Feb. 22, 1997
5 - 12Descent Sep. 06, 1997
5 - 13Hidden Agendas Sep. 13, 1997
5 - 14Graduation Day Sep. 20, 1997