"The battle for Earth continues! As the Avengers wage all-out war against a cosmic invasion force in space, the cold war between Wakanda and Atlantis heats up into a full-scale conflict on Earth. Casualties begin to mount, and one of the Illuminati is forced to make a hard choice. But when an Inhuman learns of the Illuminati's plans, everything falls apart--and the House of Black Bolt finally cracks as the Illuminati take to the front lines to oppose the mad Titan Thanos' invasion of Earth! How is Maximus the Mad involved, and what secret desires does Thanos harbor?" -- Page 4 of cover.
This is part of the Infinity event and it is worth the read, especially if you are reading the whole event. Which you should, because it's great. I don't think this issue will make much sense, if you don't understand what is going on in Avengers and Avengers World.
