The Flash 4×23 Sneak Peek #2 “We Are The Flash” Season 4 Episode 23 Sneak Peek #2 Season Finale

The Flash 4×23 “We Are The Flash” Season 4 Episode 23 Sneak Peek #2 (Season Finale) – SEASON FINALE — Team Flash gets help from a surprising ally in their battle against DeVoe (Neil Sandilands). David McWhirter directed the episode written by Todd Helbing & Eric Wallace (#423). Original airdate 5/22/2018.