He has inherited the bipolar disorder of his father

Another crisis breaks out in Mansion X when Havok cancels his wedding with Polaris for another woman. A crazed Polaris is one step away from destroying Mansion X. Once the crisis is over, Polaris undergoes psychological treatment. He has inherited the bipolar disorder of his father, Magneto.

WAnda Maximoff, the Scarlet Witch, daughter of Magneto and a member of the Avengers, began to lose his mind. In his madness Wanda began to deliberately use his powers and caused various alterations in reality. Wanda manipulated Xorn to pose as Magneto and betray the X-Men Cosplay NZ
. The Xorn-Magneto will carry out a brutal terrorist attack in New York. Only the reappearance of the Phoenix in person of Jean Gray, was able to put an end to his madness, but at a very high price: Jean Gray dies as a result of an attack by Xorn, before the villain is beheaded by Wolverine. The death of Jean will be the perfect pretext for the three teams of X-Men to decide to regroup.

After the crisis, Xavier decides to abandon the X-Men in an effort to rebuild Genosha. There Xavier finds Magneto alive, proving his innocence in the attacks in New York. Both decide to make equipment to rebuild the island-nation.

Although the complete team meets in Mansion X, the series is again divided into three main magazines, which represent each team:

The first team will be Storm, Bishop, Sage, Nightcrawler, Rachel Summers. The team continues the activities of the X.S.E Airline Uniform Costumes
. In their first mission, the group faces the return of the Hellfire Club. Later, the team finds and meets the young mutant X-23, a female clone of Wolverine who is taken to the X-mansion. The X-Men travel back to Spain, where they find Psylocke alive, without at that moment revealing the reason for their return to life.

The second group will consist of Rogue, Gambito, Havok, Polaris, Iceman and Juggernaut. In his first mission, the team encounters an Xorn who is not the one who caused the riots in New York. It is his twin brother (Shen-Xorn). Later, a new Brotherhood of evil mutants attacks Mansion X. Both Juggernaut and Xorn sacrifice to get rid of this threat and leave the group Alice in Wonderland Costumes
. Shortly after, the X-Men find Mystic, who after infiltrating the Institute with the appearance of the student Foxx, requests to be admitted to the team. The X-Men accept to test it. Later the team accompanies Storm to Africa to fight the Red Phantom and the Super Apes. After this mission, Storm decides to stay indefinitely in Africa.

The third team is the teaching staff of the Xavier Institute. Cyclops and Emma Frost serve as new directors of the squad in the absence of Xavier American Revolution Costumes
. The rest of the group are Beast, Kitty Pryde and Lockheed. In his first mission this team will face the attack of Ord, from the planet Breakworld, which sponsors an attempt to "cure" the mutants with a formula by Dr. Kavita Rao. To experiment with this formula, Ord returned from death to X-man Colossus. Colossus is found by the X-Men in his expedition at Ord's barracks and is taken to Mansion X. Eventually, the Danger Room (X-Men's training room) takes humanized form by Ord's intervention and is Returns against the X-Men, killing a student of the Institute. The X-Men seek Xavier's help to defeat Danger.