Synopsis

At S.T.A.R. Labs, Barry and his colleagues joined forces to stop Clive Yorkin, a criminal with superhuman abilities who was systematically killing people by accelerating their natural decay. Yorkin set his sights on Joe West, but it was Iris West who found herself caught in the ensuing conflict. Meanwhile, The Flash took on a protégé, guiding Kid Flash and pushing the young speedster's training to new heights.