Double-sized shocker continuing the saga of Onslaught! The X-Factor team faces double jeopardy as they confront the government's new protocols and battle the evil band of mutants led by the Dark Beast! Why is X-Factor defending the Sentinels -- and why does Onslaught want them? The Dark Beast offers himself, Random, Havok, and Fatale to Onslaught. A Sentinel Forge used for training springs to life and attacks X-Factor. Fatale appears and teleports away with the Sentinel, Mystique, and Sabretooth. Jean Grey's distress signal regarding Onslaught is intercepted by Fatale before it can get to X-Factor.