During the massive Atlantis Attacks crossover, the X-Factor team becomes entangled in a scheme by Ghaur and Llyra to resurrect the Elder God Set. When a new threat surfaces from beneath the ocean, Jean Grey, Cyclops, Iceman, Beast, and Archangel must battle waves of hypnotized followers and ancient serpentine forces while wrestling with moral choices that test their mutant ideals. Their confrontation with Set’s serpent-men culminates in an underwater showdown that challenges both faith and evolution, bridging mutantkind’s struggles with cosmic destiny.