They're the X-Men's black-ops strike team, created to go places and do things the regular squad can't or won't. They're the best trackers and killers the X-Men have to offer: Wolverine, X-23, Warpath, Wolfsbane, Archangel and more.
 

X-Force returns from the future, but as they race to defuse the Leper Queen and the Sapien League's plot, X-23 is captured by the Facility! Now, her only hope is S.H.I.E.L.D. agent Morales - but can either of them survive against Kimura, the one foe X-23 has never beaten?