A catastrophic temporal distortion is creating chaos across the past, present, and future, leaving puzzling alterations in its wake. As villains across time rise to take advantage of the disruption, it's up to a team of time-tossed heroes to uncover the true mastermind behind the crisis before the universe itself is destroyed. Featuring a legion of heroes from the iconic to the obscure and an all-star cast of writers and artists, this watershed event left its mark on the DC Universe for years to come. Collects every chapter in the groundbreaking saga in chronological order.