Comic-Con is just the most exciting place to be in the world. Trailers are being released left and right and now we have the really awesome trailer for season 3 of The Flash. The trailer shows everything that has happened since Barry altered the past by saving his mother. Everything is different, Cisco is the richest man in America, Joe doesn’t know who he is, and Barry has Reverse-Flash trapped in a cage. Take a look below at the trailer for season 3 of The Flash which comes back October 4th on The CW.