Barry feels guilty for what happened to Caitlin and Mark comesup with a plan which makes everyone skeptical. Meanwhile, RedDeath looms in Central City and commands that failure is not anoption. Joe asks Cecile to make a choice which leads Cecile tothink about the greater good. Allegra and Chester take a stepin a new direction. Lastly, old friends pay an unexpectedvisit to S.T.A.R. Labs.
