Brian Michael Bendis concludes his Uncanny X-Men era! After relentless persecution and a near-fatal attack, Cyclops and his revolutionaries are targeting S.H.I.E.L.D.! But is the spy organization really responsible for the return of the mutant-killing Sentinels? Sins and secrets will be revealed as warring X-Men gather to hear the reading of Charles Xavier's last will and testament - but its contents may lead to the team's ultimate undoing! With the end fast approaching, Scott Summers finds himself driven ever closer to the precipice of disaster. Will Cyclops save himself from ruin or leap off the edge?