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The Flash S04E09, Don't RunS04E09

The Flash · Season 4

The Flash season 4 episode 9: Don't Run

Aired 5 December 201742 minRated TV-PG

7.7TMDB · 36 votesMark watched

Where to watch The Flash Season 4 in Australia

The Flash season 4 is streaming in Australia on Prime Video (subscription), HBO Max (subscription) and Stan (subscription), and free on 9Now. You can also buy it on Apple TV from $29.99, Fetch TV from $29.99 and Prime Video Store from $24.99.

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Free

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Availability checked 16 November 2026.

What happens in “Don't Run”

Amunet kidnaps Caitlin and puts meta-dampener handcuffs on her to keep her from turning into Killer Frost. Amunet tells Caitlin she needs her to perform a tricky medical task and if Caitlin fails, Amunet will kill her. Meanwhile, The Thinker traps The Flash in a speedster-proof prison. With the clock ticking, The Team doesn't have the time or resources to track both Caitlin and Barry so Iris is forced to choose who to save.

Episode summary: TMDB.

Before you watch

  • It is episode 9 of 23 of season 4, so watch episodes 1 to 8 first.
  • It runs about 42 minutes.
  • Directed by Stefan Pleszczynski, written by Sam Chalsen and Judalina Neira.
  • TMDB users rate it 7.7 out of 10 (36 votes).

The Flash trailer

The official trailer for the series (no preview of this episode has been published).

The Flash trailerPlay video: The Flash trailer

Cast and crew of this episode

Director
Stefan Pleszczynski
Writers
Sam ChalsenJudalina Neira
Guest stars
Hartley Sawyer as Ralph Dibny / Elongated ManKendrick Sampson as Dominic LanseKim Suzanne Engelbrecht as Marlize DeVoe / The MechanicJessica Camacho as GypsyNeil Sandilands as Clifford DeVoe / The ThinkerKatee Sackhoff as Amunet Black / BlacksmithPatrick Sabongui as David Singh

Credits: TMDB.

More from The Flash Season 4

Previous · S04E08Crisis on Earth-X (III)28 November 2017Next · S04E10The Trial of The Flash16 January 2018
  1. E01
  2. E02
  3. E03
  4. E04
  5. E05
  6. E06
  7. E07
  8. E08
  9. E09
  10. E10
  11. E11
  12. E12
  13. E13
  14. E14
  15. E15
  16. E16
  17. E17
  18. E18
  19. E19
  20. E20
  21. E21
  22. E22
  23. E23

Every episode of Season 4The Flash episode guide

Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.