Ultimate Comics: X-Men, Vol. 2

The mutants have proved their worth, and Utopia thrives - but at what cost? Kitty makes a choice that could haunt her forever, as Mach Two's jungle insurgency gains strength! Plus, there are eyes in the sky - but who's watching the mutants? And when the mutant nation comes under siege, with General Ross leading the charge, Jimmy Hudson prepares for war...and Kitty and Mach Two must find out whether they can work together for the good of mutantkind!

Collecting: Ultimate Comics: X-Men 24-28