The Flash 6×19 Promo “Success is Assured” Season 6 Episode 19 Promo Season Finale

The Flash 6×19 “Success is Assured” Season 6 Episode 19 Promo (Season Finale) – SEASON FINALE – Barry (Grant Gustin) considers a risky plan to save Iris (Candice Patton) from the Mirrorverse. Ralph (Hartley Sawyer) attempts to stop Sue (guest star Natalie Dreyfuss) from making a grave mistake that could destroy her life. Phil Chipera directed the episode written by Kelly Wheeler & Lauren Barnett (#619). Original airdate 5/12/2020.