The X-Men's past, present and future collide in this 50th anniversary event! Something horrible happens to the past versions of the X-Men that shakes spacetime to its core - and more X-Men arrive from the future with a message: The original five must return home! But when young Cyclops and Marvel Girl run away to stay in the present, the hunt is on! And where does the modern-day Cyclops' revolutionary faction fit in? Things get even more complicated when mysterious foes attack the Jean Grey School and the healing-impaired Wolverine takes mortal hit! With space-time up for grabs, the surprise ending will change everything, as the X-Men's footing in the world is drastically altered!

COLLECTING: All -New X-Men 16-17, Uncanny X-Men 12-13, Wolverine & The X-Men 36-37, X-Men: Battle of the Atom 1-2, X-Men 5-6

BRIAN MICHAEL BENDIS is an award winning comics creator, "New York Times" bestseller, and is the current writer of "All New X-Men" and "Uncanny X-Men", which debuted at number one on national sales charts. He is one of the premier architects of Marvel's Ultimate comics line and has won five Eisner awards, including two 'Best Writer of the year' and was honored with the prestigious Inkpot award for comic art excellence. He lives in Portland, Oregon.