The Flash faces a new meta-human named Tony, who can turn himself into girded steel at will.

The Flash goes up against Farooq aka Blackout, a metahuman who can harness electricity.

With Barry gone, the team must figure out a way to handle the return of an old enemy - Girder. Realizing Girder is retracing his steps from his last attack, Iris volunteers to act as bait to trap him in S.T.A.R. Labs. Meanwhile, Barry fights to return to his old life.