CinemaBlend The Flash finally ended its Mirror Master (or Monarch?) arc, and while the episode brought lots of unexpected moments like the return of the original Ralph Dibny, and Iris West temporarily gaining powers, no twist could hold a candle to that ending scene. Granted, we're still not entirely sure what that final scene meant, though a current theory is exciting. To recap what happened, viewers of The Flash were taken back to the previous scene in which Iris and Barry's love brought back the original Speed Force. As sweet and slightly corny as that was, it's what happened afterward that Team Flash didn't see that has viewers talking. The Speed Force energy emitted from a lightning rod atop S.T.A.R. Labs was met by lightning that was green, yellow, red, and blue all from different directions.