Check out a sneak peek of tonight’s season finale episode of “The Flash” airing Tuesday, July 20 on The CW. In the episode entitled “Heart of the Matter Part 2,” “The Flash (Grant Gustin) enlists a host of speedster allies, including Iris (Candice Patton) and his children from the future—Bart (guest star Jordan Fisher) and Nora West-Allen (guest star Jessica Parker Kennedy) – to end the speedster war and defeat a deadly new adversary: the villainous Godspeed (guest star Karan Oberoi). Marcus Stokes directed the episode written by Eric Wallace & Kelly Wheeler.”