While there are several shows with an episode 9 in their fourth season related to "running," the most notable is S4E9, titled " Don't Run ." The Flash S4E9: " Don't Run "
: While technically S4E9, this finale features the iconic sequence of Max "running" from Vecna within her own mind, a scene that famously used practical dummies and real sets (like a winding staircase) augmented with digital effects to maintain realism. "The Flash" Don't Run (TV Episode 2017) - IMDb [S4E9] Run
: This episode set the stage for the " Trial of The Flash " storyline from the comics, where Barry is framed for a murder he didn't commit, specifically the death of DeVoe. While there are several shows with an episode
: In this reality competition episode, contestants had to complete a grueling two-round obstacle course involving climbing ladders, jumping onto moving balls, and solving underwater puzzles. " the most notable is S4E9