Guest-starring the X-Men! What happens when X-51's robotic systems, corrupted by Sentinel programs, compel him to respond to the X-Men with unbridled violence?! How will Wolverine, Shadowcat, Psylocke, Angel, Jubilee and Nightcrawler deal with the massively enhanced Machine Man?! And where does Sebastian Shaw fit into it all! It's mutant mayhem to kick off the millennium... and it all ties in to UNCANNY X-MEN #377 and WOLVERINE #147!
— Description from Comic Vine community (comicvine.gamespot.com).
