Mystique sees an opportunity to get a spy in Xavier's institute when the morally shady Todd Tolanski starts exhibiting mutant powers. Kurt Wagner, Xavier's latest recruit, arrives and tries to familiarize himself with his new life as part of the X-Men.

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.

Ororo's nephew starts exhibiting mutant powers, but he's more interested in settling a rivalry with a fellow mutant than hearing about a ""school for freaks"".

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...

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.

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.

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.

Xavier suspects that a flying "angel" seen above New York is a mutant, and he sends Cyclops and Rogue to find him before Magneto does.

Magneto steals plans for a top-secret project that produced super soldiers. Wolverine worked on it during World War II.

A traitor in the battle threatens the efforts of the X-Men and the Brotherhood against Magneto, who has another secret weapon -- the Sentinel robot.

Wanda receives a clue from one of Magneto's minions, Pyro, directing her to a ski resort. Meanwhile, Kurt is meeting Amanda's parents for the first time, and the Toad believes he can use Kurt's holo-inducer to disguise himself and win Wanda's love.

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

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

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

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

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

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