The Twelve, which is inspired by Sanne Nuyen and Bert Van Dael’s Belgian miniseries De twaalf, has proved a hit with audiences across Australia.
The first two seasons kept viewers on the edge of their seats, as it followed two gripping murder trials and how the juries’ prejudices and lives can often determine outcomes in the courtroom.
The show’s popularity has led to it picking up numerous awards and nominations since it premiered. For instance, Sam Neill recently earned a nomination for Best Lead Actor in a Drama Series at the 2025 Logie Awards for his role as Brett Colby.
If you loved the show, you will be pleased to know it will return to TV screens this August, promising more exciting courtroom drama.
Keep reading to learn more about The Twelve: Cape Rock Killer, including its premiere date, plot, cast, episodes, broadcast details, and more.
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What’s the Premiere Date for The Twelve: Cape Rock Killer?
The Twelve: Cape Rock Killer will arrive on TV screens on August 4, 2025. You will not want to miss it!
What is the Plot?
Season three of The Twelve will focus on the show’s protagonist, Brett Colby, who finds himself heavily involved in a murder trial connected to a lifelong friend.
A 1968 murder cold case of two teenage boys is reopened in the hope of finally finding their killer(s).
In the middle of a complex trial riddled with secrets, twelve new jurors are sworn in for the trial, with their life experiences, prejudices, and biases influencing their opinions in the decision room and potentially the court case’s outcome.
Who Will Star in Season 3?
Sam Neill is back as defence barrister Brett Colby, Danielle Cormack (Wentworth) will play Gabe Nicholls, and Eryn Jean Norvill (Love Me) appears as Amanda de Frey. Also, William Zappa (The Dry) stars as Alan Chaplan, and Paul Tassone plays Blake.
Also appearing in The Twelve: Cape Rock Killer are Sarah Peirse (Stateless), Ewen Leslie (Top of the Lake), Phoenix Raei (The Night Agent), Hannah Tayeb (Miles from Nowhere), Tracy Mann, Nathanlie Morris (We Were Dangerous), Catherine Moore (How to Please a Woman), and Bolude Watson (Hearts and Bones).
Are The Twelve Trials Based on True Stories?
No. The show isn’t based on specific true stories, but it strives to incorporate realistic legal processes in Australia. The season one plot was inspired by the story from the 2019 Belgian series De twaalf.
How Many Episodes Will the Third Season Have?
Like season two, The Twelve: Cape Rock Killer will have eight episodes of non-stop courtroom drama.
What is the Running Time for Each Episode?
Each episode of The Twelve: Cape Rock Killer will have a running time of 60 minutes, like past seasons.
Where Was Season Three Filmed?
While season one was filmed in Sydney, Australia, production moved to Western Australia for the second and third seasons.
The Twelve: Cape Rock Killer is believed to have been largely filmed in Perth and the Margaret River region.
Where Can I Watch The Twelve: Cape Rock Killer?
The third season of The Twelve will arrive on Binge on August 4, 2025. All eight episodes will be available to watch on the release date. Don’t miss it!
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