Cyclops vs. Havok! Jean Grey captured! The struggle for control of the breeding pens comes to a shocking climax! Focusing on Sinister's royal family, this title is fused to the nucleus of the saga! The last ally of Angel has caught so now he must to make a decision! Cyclops is revealed to be the traitor freeing prisoners from the pens, Jean Grey opens the pens.
— Description from Comic Vine community (comicvine.gamespot.com).
