• Premiered: Aug 2021
  • Episodes: 6
  • Followers: 217
  • Running
  • BBC One
  • Unknown
  • Crime Drama Mystery Thriller


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Season 1
Episode 1
Episode overview
Air date
Aug 29, 2021
When a crew member is found dead aboard the Trident nuclear submarine HMS Vigil, Detective Amy Silva is flown out to investigate.
Episode 2
Episode overview
Air date
Aug 30, 2021
With Vigil in danger, Amy must fight to continue her investigation. Meanwhile, Kirsten’s enquiries lead to tragedy.
Episode 3
Episode overview
Air date
Sep 05, 2021
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.
Episode 4
Episode overview
Air date
Sep 12, 2021
Kirsten closes in on the killer, but their capture reveals the grave threat that Vigil faces. On the submarine, Amy makes a terrifying discovery.
Episode 5
Episode overview
Air date
Sep 19, 2021
Vigil is forced into lockdown as disaster strikes. With hostile boats tracking the submarine and communications down, Vigil’s crew have to navigate this crisis alone. Kirsten desperately .. show full overview
1x6 Season finale
Episode 6
Episode overview
Air date
Sep 26, 2021
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.

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