John Diggle arrives in Central City with a weapon to help Barry stop the Godspeed War. Meanwhile, Allegra and Ultraviolet's new bond is put to the ultimate test, while Joe and Kristen Kramer are hunted by a former colleague of hers.
Genres: Drama , Sci-Fi & Fantasy
Keywords: based-on-comic , masked-superhero , speed , super-power , superhero , supervillain , watch-series-online