The Flash 3×23 Sneak Peek “Finish Line” Season 3 Episode 23 Sneak Peek Season Finale

The Flash 3×23 “Finish Line” Season 3 Episode 23 Sneak Peek (Season Finale) – SEASON FINALE – With nothing left to lose, Barry (Grant Gustin) takes on Savitar in an epic conclusion to season three. David McWhirter directed the episode written by Aaron Helbing & Todd Helbing (#323). Original airdate 5/23/2017.