The Flash “Flash Back” Promo

Barry is getting desperate in order to stop Zoom and learn to be even faster. So, he goes back in time … where Thawne was impersonating Harrison Wells and Eddie Thawne was still alive. Now, the Flash must learn the secrets of his speed while also dealing with the Pied Piper in The Flash, season 2, episode 17 “Flash Back”

 

https://www.youtube.com/watch?v=TLz3t9Yzvx0