The mysterious disappearance of a Scottish fishing trawler and a death on-board the submarine HMS Vigil bring the police into conflict with the Navy and British security services. DCI Amy Silva and DS Kirsten Longacre lead an investigation on land and at sea into a conspiracy that goes to the very heart of Britain’s national security.
Where to watch
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Peacock Premium
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Peacock Premium Plus
see all options Availability data: JustWatch
- Seasons
- 3
- Episodes aired
- 16
- Latest aired
- S03E04
- Total runtime
- 15h 23min
Timeline when each season aired
- Season 1 August 2021 – September 2021 6 episodes
- the show was away for 2 years and 2 months
- Season 2 December 2023 6 episodes
- the show was away for 2 years and 8 months
- Season 3 August 2026 – September 2026 6 episodes
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S01E01 Episode 1
August 29 · 58min find the promo
Show synopsis
When a crew member is found dead aboard the Trident nuclear submarine HMS Vigil, Detective Amy Silva is flown out to investigate.
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S01E02 Episode 2
August 30 · 58min find the promo
Show synopsis
With Vigil in danger, Amy must fight to continue her investigation. Meanwhile, Kirsten’s enquiries lead to tragedy.
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S01E03 Episode 3
September 5 · 58min find the promo
Show synopsis
Kirsten’s investigation takes her into the heart of Scottish politics, but when she unearths a navy cover-up, it leaves Amy questioning who she can trust on Vigil.
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S01E04 Episode 4
September 12 · 58min find the promo
Show synopsis
Kirsten closes in on the killer, but their capture reveals the grave threat that Vigil faces. On the submarine, Amy makes a terrifying discovery.
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S01E05 Episode 5
September 19 · 58min find the promo
Show synopsis
Vigil is forced into lockdown as disaster strikes. With communication lost, Kirsten desperately hunts for clues to the source of the threat to Vigil.
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S01E06 Episode 6
September 26 · 58min find the promo
Show synopsis
Amy is trapped and running out of time, but will assistance arrive too late? On land, Kirsten chases down the traitor’s accomplice. When the traitor on Vigil puts their plans into action, the crew are forced to fight for their lives.