As a new generation of mutants begins maturing across the globe, a long-lost Master Mold A.I. and Sentinel production facility in the jungles of Ecuador is uncovered by a mysterious woman called Cassandra Nova. She uses the last surviving relative of Bolivar Trask to gain control of the wild sentinels and has the man order the Sentinels to massacre the entire population of the mutant nation of Genosha.
