The momentous events of CIVIL WAR rip the New Avengers apart, and the Marvel Universe will never be the same! Brian Michael Bendis' New Avengers roster is completed! But who is the masked Ronin, and why has Captain America recruited this mysterious figure? In the wake of the tumultuous events of HOUSE OF M, a new threat emerges that may be impossible to stop. Canada's premier super-team finds that out the hard way - will the Avengers fare any better? And when CIVIL WAR breaks out across the Marv ...