S1 E123 min
The Return
When a young girl named Hisako Ichiki goes missing in northern Japan, her parents seek help in Professor Xavier, who calls on the X-Men to unite.
TMDB 6.0/10 from 5 votes
X-Men
Season 1
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12 episodes · First aired 2011-04-01
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Episodes
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Showing 12 at a time
S1 E223 min
U-Men
The X-Men carry out an investigation that leads them to the U-Men, a group of mad scientists whose hideout contains a horrifying secret.
TMDB 5.2/10 from 4 votes
S1 E323 min
Armor
Hisako's mutant powers are weakened during a fierce battle between the X-Men and Todd, the U-Men's mad scientist.
TMDB 5.0/10 from 4 votes
S1 E423 min
Transformation
The X-Men are put at risk of secondary mutation when the Blackbird is attacked by a bat-like creature showing dangerous signs of Damon-Hall Syndrome.
TMDB 5.0/10 from 4 votes
S1 E523 min
Power
Emma allows Professor Xavier to read her mind and reveal her thoughts after Cyclops opposes her membership in the X-Men.
TMDB 5.0/10 from 4 votes
S1 E623 min
Conflict
An intense battle ensues when the X-Men are attacked by remnants of the U-Men after being forced to execute an emergency landing in the Blackbird.
TMDB 5.2/10 from 4 votes
S1 E723 min
Betrayal
Having defeated the U-Men, the X-Men come face to face with Yui Sasaki at her underground base, where she once ran a school for mutant children.
TMDB 5.2/10 from 4 votes
S1 E823 min
Lost
After falling ill with Damon-Hall Syndrome, Riko and Kaga attack the X-men's base, while Emma spies on a stranger in her diamond form.
TMDB 4.3/10 from 3 votes
S1 E923 min
Revelations
Revelations abound when it's discovered that Riko and Kaga were drugged by Yui and that Jun and Mastermind are one in the same.
TMDB 4.0/10 from 3 votes
S1 E1023 min
Countdown
Mastermind's evil plans are frustrated as a fierce battle between the X-Men and the Four Pillars of the Inner Circle rages on.
TMDB 4.0/10 from 3 votes
S1 E1123 min
Revenge
Despite Yui's attempts to suppress them, Takeo's powers continue to gain strength, causing reality itself to become more and more twisted.
TMDB 2.0/10 from 2 votes
S1 E1223 min
Destiny
The X-Men mount an attack to bring down Professor Xavier's son, Takeo, before he destroys the world, putting an end to both mutants and humanity.
TMDB 3.7/10 from 3 votes