The bustling streets of New York were unusually quiet other than the booming crash of falling buildings and the howl of sirens. Everybody was either shivering with fear inside their homes or had evacuated the city. The source of this fear was a raging sentinel: a colossal robot designed to target and eliminate mutants. However, the sentinel was not programmed to protect normal human life, and would go to extraordinary lengths just to destroy a single innocent mutant. It was painted with mostly fluorescent pink and dark purple, but its happy colors were deceptive. With a loud whir, the sentinel sent a blazing beam of energy from its mechanical palm, incinerating a car, transforming it into a pile of red-hot debris.