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  • : 12
  • : 297
  • BBC One
  • 21
  • Crime Drama Mystery Thriller

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1
1x1
Episode 1
Episode overview
When a crew member is found dead aboard the Trident nuclear submarine HMS Vigil, Detective Amy Silva is flown out to investigate.
1x2
Episode 2
Episode overview
With Vigil in danger, Amy must fight to continue her investigation. Meanwhile, Kirsten’s enquiries lead to tragedy.
1x3
Episode 3
Episode overview
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.
1x4
Episode 4
Episode overview
Kirsten closes in on the killer, but their capture reveals the grave threat that Vigil faces. On the submarine, Amy makes a terrifying discovery.
1x5
Episode 5
Episode overview
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
Episode 6
Episode overview
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.

Characters