The first in a series of hardcover volumes that collect all of the bestselling issues of THE FLASH written by comics superstar Geoff Johns. In this volume, Wally West finds himself without his super speed in a darker, mirror version of Keystone City. Can a powerless Flash defeat Captain Cold and Mirror Master to save the city he loves? Plus, the Flash is shocked to learn that a strange cult is killing all the people he has ever rescued. Featuring art by fan-favorites Ethan Van Sciver, Scott Kolins and more! Collects THE FLASH #164-176, THE FLASH: OUR WORLDS AT WAR #1, THE FLASH: IRON HEIGHTS and THE FLASH SECRET FILES #3!