Ep. 2: U-Men - Mutant Hunting

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The X-men learn that in Touhoku, the U-Men have been kidnapping mutants to harvest their organs to create countermeasures against mutantkind. They find themselves attacked by the U-Men's robots, but are able to destroy them. At an abandoned hospital, they find a mutant boy, who transforms into a monster and Cyclops reluctantly kills him to save his friends. They manage to locate the laboratory where Hisako is being kept along with Emma Frost, a woman who Cyclops remembers was present with Jean during his battle with Phoenix. (Source: Wikipedia)