22 strangers are pitted against each other in a remote castle, where they must play a game an imaginative game of strategy. The twist? Some players, known as the Traitors, are secretly tasked with eliminating their competitors each night without being detected.
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Availability data: JustWatch
- Seasons
- 2
- Episodes aired
- 18
- Latest aired
- S02E06
- Total runtime
- 15h 1min
Timeline when each season aired
- Season 1 August 2025 – September 2025 12 episodes
- Season 2 August 2026 – September 2026 9 episodes
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S01E01 Episode 1
August 31 · 50min find the promo
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Siobhán McSweeney greets a group of strangers in Slane Castle to play the ultimate murder mystery game. The players make a decision that ripples through the castle.
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S01E02 Episode 2
September 1 · 50min find the promo
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The ultimate game of lies and detection gets personal as ripples from the Traitors' first murder sends shockwaves and suspicion throughout the castle.
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S01E03 Episode 3
September 2 · 50min find the promo
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With the castle reeling from another murder, a shocking turn of events brings with it a tsunami of unrest and desperation. The power of the shield comes into play.
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S01E04 Episode 4
September 7 · 50min find the promo
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The traitors continue to wreak havoc on the faithfuls at Slane Castle. Today's mission will test their ethics and powers of deception.
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S01E05 Episode 5
September 8 · 50min find the promo
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Tensions are high as suspicion is everywhere. An explosive argument leaves the players reeling, and threatens to have an impact on the round table.
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S01E06 Episode 6
September 9 · 50min find the promo
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As the game intensifies at Slane Castle, a shocking turn of events leaves the players unsure of who to believe.
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S01E07 Episode 7
September 14 · 50min find the promo
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At breakfast, the players speculate, but Siobhán has a shocking twist that leaves the faithful reeling
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S01E08 Episode 8
September 15 · 50min find the promo
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Accusations run rife, the shield divides the group, and an ancient curse wreaks havoc
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S01E09 Episode 9
September 16 · 50min find the promo
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Siobhán has a chilling revelation for the faithfuls at breakfast. Emotions run high as the faithfuls desperately try to find another traitor
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S01E10 Episode 10
September 21 · 50min find the promo
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In the ultimate game of trust, the players must decide who they distrust the most. But will that person be punished or rewarded? Can the faithfuls turn it around at the round table?
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S01E11 Episode 11
September 22 · 50min find the promo
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In the penultimate episode, the remaining contestants - both faithful and traitor - lie for their lives in an attempt to get the grand finale
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S01E12 Episode 12
September 23 · 50min find the promo
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Twenty four players arrived at Slane Castle, a handful remain. The final mission has another prize amount at stake