After an accident empowered Barry Allen with the gift of superhuman speed, the young scientist quickly became one of Earth's most heroic defenders: The Flash. As part of The Justice League, Barry has continued to explore the limits of his powers while trying to outrun the events of his childhood. When he discovers that that he has the ability to manipulate time. , , The Fastest Man Alive races back to a pivotal moment in his past only to change the future in a Multiverse of ways that he could have never imagined.