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The Flash S08E17, Keep It DarkS08E17

The Flash · Season 8

The Flash season 8 episode 17: Keep It Dark

Aired 8 June 202243 minRated TV-PG

6.1TMDB · 8 votesMark watched

Where to watch The Flash Season 8 in Australia

The Flash season 8 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 $39.99 and Prime Video Store from $29.99.

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Stream (subscription)

Free

Buy or rent

Availability checked 16 November 2026.

What happens in “Keep It Dark”

The Flash goes off the grid to look for answers about a new Meta in town. Meanwhile, Allegra pulls out all of the stops at CC Citizen Media, to protect a source and a friend.

Episode summary: TMDB.

Before you watch

  • It is episode 17 of 20 of season 8, so watch episodes 1 to 16 first.
  • It runs about 43 minutes.
  • Directed by Danielle Panabaker, written by Kristen Kim and Emily Palizzi.
  • TMDB users rate it 6.1 out of 10 (8 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

Writers
Kristen KimEmily Palizzi
Guest stars
Natalie Sharp as Millie Rawlins / SunshineLindy Booth as VanyaShayan Bayat as Aariz MousaStephanie Izsak as Officer Daisy KorberKaitlyn Santa Juana as Lydia SanchezEmmie Nagata as Dr. Kimiyo Hoshi / Dr. LightBobo Le as AndiRachel Drance as Taylor Downs

Credits: TMDB.

More from The Flash Season 8

S08E16Previous · S08E16The Curious Case of Bartholomew Allen25 May 2022
Next · S08E18The Man in the Yellow Tie15 June 2022
  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

Every episode of Season 8The 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.