Hello Speedsters and DC Comics Fans , Here is my review of The Flash Season 2 Episode 17 Flash Back 1st as always a description of the episode : After discovering the true identity of Zoom, Barry is more determined than ever to stop him; to increase his speed, Barry goes back in time to look for help from an arch nemesis. Now on to my thoughts on the episode Warning Full Spoilers to follow , I really enjoyed this episode. It was good , scary , action packed intense and emotional. Barry sure hand his hands full going back in time to Season 1. This episode had it all Barry trying to find out how to defeat Zoom , Time Travel , 2 Barry Allen’s , Flash vs Flash , and so much more. The way Barry went back in time to Season 1 to become faster was amazing. Also it was good seeing Eddie again. You can tell Iris still misses Eddie and she’s been through a lot the past Season and a half. Seeing The Season 1 Harrison Wells / The Reverse Flash again was good and Tom Cavanagh was great playing both versions of Harrison. Grant Gustin was amazing again as The Flash / Barry Allen and him playing the 2 Barry’s was amazing. The ending of the episode where Barry from Earth One has to stop this Zombie Speedster was amazing it was fast and so intense a great ending to this weeks episode. Once again great special effects and great work by The Flash Production Team they did a good job as they always do. Overall I give The Flash Season 2 Episode 17 Flash Back a 9/10 a great episode and Can’t wait for the next episode in 3 weeks.