A mysterious explosion destroys the X-Mansion right on the moment Wolverine was leaving. Professor X and Jean Grey are missing and perhaps gone for good causing the X-Men to disband. However, one year later, Anti-Mutant hunts Wolverine, and arrest a family that helped him, making him go after them with the help of Beast. Inside the jail, they free all the mutants, including Dust, Boom Boom and Pyro. In the end, Wolverine decides to find the others X-Men and fight the Anti-Mutants.
The X-Mansion is being rebuilt with the help of Forge and the money of Angel. Emma Frost shows up and asks to help by using Cerebro to locate Professor Xavier. She succeeds: a comatose Xavier is in Genosha being taken care by Magneto. Back to the mansion the X-Men receive a telepathic message from Xavier from 20 years in the future. He tells them that the Sentinels have destroyed the world and asks Wolverine to lead the X-Men and avoid this "future" to come to happen.
There is news that Nightcrawler was seen on a ship traveling to Genosha with other mutants, so the X-Men try to find him. Meanwhile, Nightcrawler and the other travelers (including Squidboy and Pixie) are intercepted by “pirates”, who really are Spiral and the Reavers, looking for fighters within the pool of high level mutants to take them to Mojo.
Professor Xavier warns the X-Men about an impeding event that wipes half the mutant population: Nitro will self-detonate in Genosha. The Brotherhood rescue Nitro from a government prison against his will and use Psylocke to control him, planning to use him as a weapon. The X-Men chase the Brotherhood in order to prevent Genosha's destruction.
Jean Grey has been abducted, but as the X-Men begin the search a new problem arises. Magneto has forced the hand of Senator Kelly into launching a Sentinel attack on Genosha so that he can strike back and begin the war! Meanwhile in the future, Mastermold has captured Xavier and is forcing him to reveal the locations of mutants all over the world!
Sentinels begin their attack on Genosha causing dissension in the ranks when Scarlet Witch makes an important decision about which side she's on. Plus, the Inner Circle's true intentions with the Phoenix are revealed causing Emma Frost to question her loyalty. Meanwhile in the future, the future X-Men form their plan to take down Mastermold.
The Inner Circle manage to draw the Phoenix out of Jean Grey but it proves to be more powerful than anyone could have imagined. Now Cyclops, Emma Frost and the rest of the X-Men must find a way to stop it before it destroys the world! Plus, the future X-Men begin their assault on Mastermold and the Sentinels!
19-minute talk with the crew behind the series that showcases concept art and talks about the origins of the series and its place in the Marvel universe.