With Hope now destined to become the host of the Phoenix, the Avengers hold a meeting to decide what to do about the situation. In the mind of Captain America (along with many of the others), the Phoenix is simply too destructive a force to let return to Earth. With that in mind Cao begins recruiting every Avenger he can find to go to Utopia so they can take Hope into Avengers custody until they can figure out a way to deal with the Phoenix. At the same time, Thor is sent into space with Beast, Ms Marvel, and others, to stop the Phoenix or at least slow it down.
The final Avenger Cap goes to recruit is Wolverine, Steve thinking that Wolverine would agree with him about the Phoenix. However, though Logan agrees that the Phoenix needs to be dealt with, Logan objects to Cap going to Utopia with an army at his back, knowing full well what Cyclops would be willing to do in order to protect Hope. Wolverine agrees to go in the end, but he warns Cap that once he steps foot on Utopia, there would be no turning back.
On the flip side, Cyclops knows that the Avengers will come for Hope eventually, the threat of the Phoenix too large for them to ignore. As opposed to them however, Scott believes that the Phoenix should be allowed to come, and that with Hope it may complete Hope’s destiny of bringing new life to the mutant race. Not all the X-Men entirely agreed with Scott, but enough agreed that taking Hope into custody against her will could not be allowed to happen, and that whatever happens should be her decision.
His army gathered, Captain America leads an army of Avengers to Utopia, landing alone to speak with Cyclops to find a peaceful solution. Cap asks that Hope be given to the Avengers, but Scott refuses to turn her over, citing that he cannot give the only hope for his people over to someone else. The argument escalates, the X-Men and the Avengers watching on, slowly realizing that there was no peaceful way out of this, and quietly prepared themselves for the explosion that was coming. Finally, Cap finally pushes one too many buttons, and Cyclops blasts Cap across the beach, firing the first shot in a war 8 years in the making. Resigned, Cap utters the words that he never thought he would say with such regret, “Avengers Assemble.”
X-Men and Avengers from across the globe converge on Utopia in a massive battle, friends and allies pitted against each other en masse. While the chaos reigns on the beaches of the island, Hope Emma Frost, only for her to break away. In Hope’s mind, this war is her fault, and that she has to join with the Phoenix to stop it. Wolverine and Spider-Man try to stop her from leaving the island, but her growing powers knock them out, and she flees.
As the battle begins to turn ill for the X-Men, Cyclops feigns surrender to save his people. Just when it seems to be over, he orders Magick to teleport him and the rest of the Extinction Team to the Blue Area of the Moon to hide out until he could come up with a plan. The Avengers regroup as well, Wolverine insisting that Hope be killed if she is possessed, but Captain America disagrees, and has Logan thrown out of the Quinjet (relax, Cap knew he’d survive it). Hope finds Logan however, convincing him that he has to help her complete her destiny, and makes him promise that is she does become Dark Phoenix to kill her before she can hurt anyone.
Both teams begin searching for Hope, eventually all parties going to the Blue Area of the Moon, where an injured Thor tells everyone that the Phoenix is coming, and that his mission with the Secret Avengers to stop it has failed. Another battle ensues, and the Phoenix arrives, but just as Hope steps forward to receive it, Iron Man activates a devise that diverts the Phoenix’s power in the hope to contain it. It doesn’t work, and the power escapes, splitting apart and entering Cyclops, Namor, Emma Frost, Colossus, and Magick, turning them into the PHOENIX FIVE!!!