Infinite Crisis is here - and the Cosmic Storm rages out of control, threatening the fate of the entire universe! While the Rannian and Thanagarian flagships each suspect that the other is responsible for the disturbances, Donna Troy must lead her team of space champions into the cosmos in an attempt to prevent total destruction. But as the war rages on, a startling discovery will be uncovered, one hero will be forever changed, and another will make the ultimate sacrifice.