: Yesterday's episode was just amazing! CW explained Barry's visit to Supergirl's Earth! And if you listen closely... You can hear the Supergirl theme play as Barry enters the breach... ⚡️ ⚡️ ⚡️ #TheFlash #TheFlashSeason2 #TheFlashCW #CWTheFlash #BarryAllen #ScarletSpeedster #FastestManAlive #VersusZoom #DC #DCComics #DetectiveComics #⚡️ #Speedster #SpeedForce