The battle against Apocalypse rages as X-Men, the Brotherhood, and Acolytes join forces to stop him from turning all humans into mutants.

As all the monsters in the tomb attack, the teammates fight to survive and find a way out.

Rogue begins to lose control of all the people she's ever absorbed as they fight to take over. She discovers unsettling information about Mystique. Scott and Jean go on a date... or do they?

Xavier finds Apocalypse in Egypt, and Apocalypse unleashes four horsemen, who battle the X-Men.

X-Men and the Brotherhood deal with the aftermath of the world finding out about mutants. The Institute is blown up, and Mystique posed as Prof. X to blow it up. Some of the X-Men and Brotherhood are captured, leaving the mutants that escaped to find them and the Professor.

Rogue and Wolverine duck a squad of soldiers when the nationwide alert goes out against mutants, while Storm and Beast go into a meeting of Congress to defend themselves. Meanwhile Juggernaut goes on a rampage and the X-Men feel obliged to take him down.

As Jean's and Scott's graduation day approaches, Rogue suddenly leaves the mansion.

Magneto reveals the his plans for the winners of his challenge - to fully unlock their powers with a machine he has built. Back at the mansion, those left behind regroup, and decide to pay Magneto a little visit.

Mesmero mentally controls Gambit into stealing half of the Spider Stone from Angel.

Scott and Rogue end up on a geology club field trip together. Scott tries to be friendly to her, but it turns out Mystique has other plans...

Rogue's nightmares seem to show images from Kurt's past, but in them he's far too young to remember. So where did they come from?

As mysterious metal pods appear, picking up the mutants one at a time, Cerebro detects a new mutant in Hawaii: Alex Summers - Scott's believed to be deceased brother.

A mysterious female assassin terrorizes the X-Mansion, knocking out the X-Men one by one. Wolverine finds out that it is his clone, created by the Dr. Deborah Risman and raised without love by HYDRA, and she wants to kill him because she holds him responsible for her miserable life. Wolverine and X-23, as she is called, square off in a battle that Wolverine does not want to win.

The X-Men pursue Apocalypse in Mexico, hoping to find and overcome him before Magneto finds him.

After being kept in the dark about her powers for years, a young female mutant touches a fellow student and absorbs his strength, his memories - his life. Afraid and confused, and unable to differentiate her memories from the absorbed ones she runs away - straight in to the hands of Mystique.

While the X-Men are at a summer camp, learning survival training, Mystique releases Cain Marko - the unstoppable Juggernaut - in hopes of getting his help in obtaining Xavier's mutant location system.

During the rebuilding of the manor, Kitty and Kurt intercept a bunch of graffiti artists disguised as monsters. The older students get to go back to Bayville High for one day before attending a hearing to determine their ultimate fate, while they are banned from using their powers.

Mystique escapes from imprisonment while the X-Men repair and rebuild the Institute. Disguised as Alex, she lures Scott into a trap - leaving him stranded in the middle of the Mexican desert without his glasses.

Rogue is kidnapped by Gambit, who says he's there to help her; and the X-Men search for her, led by Wolverine.

A news report from the Canadian mountains triggers something deep inside Wolverine, and he starts having berserk fits. To find out why, he takes the Blackbird to the site, not knowing that Kitty and Kurt are sitting in the back.

Jean's telepathy changes, arriving in surges she can't control; and Hank McCoy joins the faculty as a science-and-gym teacher.

The X-Men help Storm when her abilities are threatened by a visiting African witch doctor who attempts to steal her powers.

Wolverine finds his clone, X-23, who's trying to destroy Hydra, her creator, and the two team up to complete the mission.

Hate crimes against mutants in Bayville prompt Spyke to return to stop the violence.

Wanda goes searching for Pietro. Meanwhile the brotherhood's members are expelled from school, much to Lance's dismay.