After a particle accelerator causes a freak storm, CSI Investigator Barry Allen is struck by lightning and falls into a coma. Months later he awakens with the power of super speed, granting him the ability to move through Central City like an unseen guardian angel. Though initially excited by his new found powers, Barry is shocked to discover he is not the only “meta-human” who was created in the wake of the accelerator explosion and not everyone is using their new powers for good. Barry partners with S.T.A.R. Labs and dedicates his life to protect the innocent. For now, only a few close friends and associates know that Barry is literally the fastest man alive, but it won’t be long before the world learns what Barry Allen has become…The Flash.
Barry changes into the Flash when six gunmen storm a university event honoring a scientist, but his heroics don’t match up to his expectations. Meanwhile, Iris becomes even more intrigued by the “red streak.”
Barry and the team go after the Mist, who possesses toxic gas powers, and they reflect on the night Caitlin’s fiancĂ© died. Meanwhile, Henry gets a long-awaited visit from Joe; and Iris and Eddie continue to keep their romance a secret from Joe.
The Flash battles Captain Cold after the villain is involved in a robbery and plots to steal the Kahndaq Dynasty Diamond. The evil plans get a boost when the Captain gets his hands on a stolen “cold gun” that could kill the Flash.