Flashpoint (2011-) #1

Not a dream, not an imaginary story, not an Elseworlds. This is Flash Fact: When Barry Allen wakes at his desk, he discovers the world has changed. Family is alive, loved ones are strangers, and close friends are different, gone or worse. It's a world on the brink of a cataclysmic war—but where are Earth's Greatest Heroes to stop it? The DCU world-changing event FLASHPOINT begins here!