History
Quicksilver shared a similar history to his Prime Universe counterpart until the rest of X-Men were killed by the Juggernaut for unknown reasons. This allowed the Sentinels to rise in numbers and adapted there software to emit radiation that killed all humans and mutants. Iceman survived because he was found by Magneto and taken aboard his spaceship and came to a secret underground sub-basement. Though their numbers were small, they banded together under Magneto’s guidance and sealed themselves off from the outside world. Eventually the Juggernaut discovered their base and breached their environment, exposing them all the radiation. They told Juggernaut to leave as he had doomed them all.[1]