| Issue | #177 |
| Published | January 2006 |
| Cover Price | $2.50 |
| Pages | 36 |
| Editing | Mike Marts |
| Characters | Havok; Iceman; Rogue; Wolverine; Gambit; Polaris; Sentinel Squad O*N*E |
| Genre | Superhero |
| Pencils | Salvador Larroca |
| Inks | Salvador Larroca |
| Colors | Liquid! |
| Letters | Typeset |
| Characters | Gambit; Iceman; Polaris; Beast; Shadowcat; Rogue; Cyclops; Colossus; Wolverine; Havok; Hellion; Sapien League; Leper Queen; Rockslide; Bling; Valerie Cooper; Sentinel Squad O*N*E |
| Synopsis | The X-Men have their first encounter with Sentinel Squad O*N*E on the school's grounds. The Sapien League attacks the school. |
| Genre | Superhero |
| Script | Peter Milligan |
| Pencils | Salvador Larroca |
| Inks | Danny Miki; Allen Martinez |
| Colors | Liquid!; Avalon |
| Letters | Virtual Calligraphy's Cory Petit |