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The Vampire Diaries S03E19, Heart of DarknessS03E19

The Vampire Diaries · Season 3

The Vampire Diaries season 3 episode 19: Heart of Darkness

Aired 19 April 201243 minRated TV-14

7.6TMDB · 16 votesMark watched

Where to watch The Vampire Diaries Season 3 in Australia

The Vampire Diaries season 3 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.

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Availability checked 16 November 2026.

What happens in “Heart of Darkness”

Elena and Damon set off together to make sure Jeremy is safe in Denver, and to see if his special abilities can help reveal the information they need about ancient vampire bloodlines. It doesn’t take them long to learn that Jeremy has been hanging with the wrong people. Stefan and Klaus both go to brutal extremes in their search for the missing weapon. Caroline is thrilled when Tyler returns to town, but Tyler soon suspects that something has been going on between Caroline and Klaus. Matt has his hands full trying to keep Rebecca busy organizing the school’s upcoming 1920s Decade Dance.

Episode summary: TMDB.

Before you watch

  • It is episode 19 of 22 of season 3, so watch episodes 1 to 18 first.
  • It runs about 43 minutes.
  • Directed by Chris Grismer, written by Brian Young.
  • TMDB users rate it 7.6 out of 10 (16 votes).

The Vampire Diaries trailer

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

The Vampire Diaries trailerPlay video: The Vampire Diaries trailer

Cast and crew of this episode

Director
Chris Grismer
Writer
Brian Young
Guest stars
Claire Holt as Rebekah MikaelsonNathaniel Buzolic as Kol MikaelsonAlice Evans as Esther MikaelsonLauren Cohan as Rose

Credits: TMDB.

More from The Vampire Diaries Season 3

Previous · S03E18The Murder of One29 March 2012Next · S03E20Do Not Go Gentle26 April 2012
  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

Every episode of Season 3The Vampire Diaries 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.