An opportunity presents itself for The Flash to end his lifelong battle with Reverse Flash for good, but the payoff could be too much for Barry and team to handle. Meanwhile, Mia Queen drops in from the future looking to save a lost loved one, and she won't let anything stand in her way.
Genres: Drama , Sci-Fi & Fantasy
Keywords: based-on-comic , masked-superhero , speed , super-power , superhero , supervillain , watch-series-online