Book Description: A group of X-Men from the future come back in time to try and assassinate the Fantastic Four - attempting to prevent the events of Ultimatum from ever happening. Who are these warriors from the future and what role will they play in the shocking scenario to follow? Also, who can stop the future X-Men from killing today's Fantastic Four? Who else - the future Fantastic Four! If you think you know who the Black Panther is, you haven't spent enough time in the Ultimate U! What secrets from his past cross into Captain America's origin? What deal did they make that will throw Cap's loyalty to the Ultimates into question? Plus, it's the Ultimate Road Trip of the Year! The HULK and Zarda - a.k.a. Power Princess from the Squadron Supreme - team-up for the most wild cross-country smash-and-grab you can imagine! Then, the relationship between Peter Parker and Mary Jane is one of the most iconic and popular romances in all of comics - and in this very special story that relationship delves into an area never before seen in any Spider-Man comic! Collects Ultimate Fantastic Four/Ultimate X-Men Annual #1, Ultimate X-Men/Ultimate Fantastic Four Annual #1, Ultimate Captain America Annual #1, Ultimate Hulk Annual #1, and Ultimate Spider-Man Annual #3.