X-Men: Evolution - Season 4

Nightcrawler tries to revive his mother Mystique who is still trapped in stone, much to the dismay of Rogue.

The Brotherhood stage accidents in order to make themselves look like heroes and use their new found fame to make the X-men look bad.

Wolverine is kidnapped, but escapes in the forest. X23 returns and teams up with Wolverine to take on Hydra!

David Haller, Xavier's son, who has lived away from his father's knowledge, contacts him seeking help. He has been kidnapped by a man called Lucas. Xavier, Jean, Scott and Storm travel to Scotland where Xavier's ex-wife lives with David and a street boy called Ian. When Ian leaves the house, Jean follows him and is kidnapped by Lucas. Scott tracks them to an old castle in ruins where teenagers throw parties and gets captured. Xavier and David's mother find Ian and with his help, they get to the castle and face the boys there while Jean, Scott and David escape. David meets his father for the first time, and he reveals he is actually Ian. Lucas, too, by turning into Ian first and later into Lucas. His multiple personalities change his appearence every time. Xavier enters in his son's mind trying to erase Ian and Lucas, but fails and Lucas is the only one left who disappears in the sky. Meanwhile, at Bayville, Kitty and Kurt are way too sick to go to school.

During a wave of anti-mutant violence, Spyke returns, having further mutated as a vigilante and protector of the sewer-dwelling Morlocks.

Gambit kidnaps Rogue and tells her he is trying to help her to forget what she did to Mystique. When everyone notice she is missing, Wolverine sense Gambit's smell and goes to Magneto's base where he find Pyro and tells him the Acolytes are separated and he does not know where Gambit is. Gambit takes Rogue to city where a couple of criminals reconcile him and attack them both. Rogue touches the leader of them and discovers Gambit's foster father is being hold in an old house near the swamp. They go there and Rogue accidentally touches Gambit and learns he is using her to get there. Gambit decided to go alone but Rogue comes back to help him and rescue his father and take on the Rippers. Wolverine and the rest of the X-men arrive and take Rogue with them while Gambit decides to quit that lifestyle for good.

Kitty is saved from a rockslide by a mutant girl named Danielle Moonstar. Danielle quickly joins the institute, but immediately causes trouble during a training session when she causes the nightmares of Jean, Kurt, and Kitty to come true. That night, Logan, Professor X, and Storm also have powerful nightmares, worrying Kitty that her new friend will be expelled from the institute. When Kitty wakes up the next morning, Danielle isn't there -- and when she asks, nobody has even heard of her. Kitty is determined to find Danielle Moonstar, and follows a path of strange messages that only she is receiving to her location.

Apocalypse plans to turn all humans with the dormant X-gene into mutants.

In order to prevent all of humankind from being turned into mutants, the X-Men, the Brotherhood, S.H.I.E.L.D., The Acolytes, Angel, Spyke, Havok, and the New Mutants all join forces to save humanity from the ambitions of Apocalypse.