A bold new era for the X-Men begins as the group splits in two, and Cyclops forms the Extinction Team! Mr Sinister returns with a shocking plan! Don't miss ' Everything is Sinister!'
Includes material from Uncanny X-Men (vol 1) #544 and Uncanny X-Men (vol 2) #1-2.
— Description from Comic Vine community (comicvine.gamespot.com).
