Flashpoint (2011)

Not a dream, not an imaginary story, not an elseworld. 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? It's a place where America's last hope is Cyborg, who hopes to gather the forces of The Outsider, The Secret 7, SHAZAM!, Citizen Cold and other new and familiar-yetaltered faces! It's a world that could be running out of time, if The Flash can't find the villain who altered the time line!
Collects Flashpoint (2011) #1-5.