The Black Widow and Hercules guest appear in "Let Sleeping Dragons Lie!", Hank Pym has gained possession of the android Dragon Man, who was rendered inert since his last fight with the Fantastic Four; As soon as Pym gets the android in his lab, however, Diablo appears, reactivating the android; Dragon Man conquers the Avengers and takes Goliath and the Wasp captive; Mr. Fantastic and the Human Torch (of the Fantastic Four) cameos.
