LIGHT AND DARK COLLIDE! The Defenders have taken the fight to the dual threat of Hela and Knull, choosing offense over defense to save the Earth. But will in-fighting and tragedy combine to seal the fates of Team Dark and Team Light before they can complete their desperate mission? Or will the mysterious and dangerous "Plan B" turn the tide in this seemingly unwinnable battle? The fate of the world hangs in the balance between the forces of light and dark!