The shocking saga continues - as Onslaught's unnerving origin is revealed! How can the X-Men defeat a threat that strikes from their very heart? As X-Factor battles a mind controlled Havok to save the Beast, X-Force defends X-Man from the manipulative Mister Sinister! And Cable and Storm must reckon with Onslaught's most incredible pawn of all - the Hulk! But can the X-Men, Avengers and Fantastic Four find a way to free Franklin Richards from the deadly Onslaught's grasp? Plus, as the Sentinels ...