A 100-page mutant-packed special!A new saga begins: 'Battle of the Atom'! The X-Men face a crisis from their past, present and future!
By Brian Michael Bendis and Stuart Immonen!
Featuring material first printed in Uncanny X-Men #11, All-New X-Men #15-16 and Battle of the Atom #1.
— Description from Comic Vine community (comicvine.gamespot.com).