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When a crew member is found dead on board the Trident nuclear submarine HMS Vigil, police in Scotland are called in to investigate.

The catch? The UK’s nuclear deterrent must remain unbroken, so the submarine stays on patrol and Detective Chief Inspector Amy Silva (Suranne Jones) must go aboard to begin an investigation.

Although the death was written off as an accidental overdose, Amy suspects foul play. But when the crew close ranks in the face of Amy’s questioning a new threat overshadows her inquiry.

From World Productions - the producers of Line Of Duty, The Pembrokeshire Murders, Save Me and Bodyguard - Vigil also stars Rose Leslie, Shaun Evans, Martin Compston, Paterson Joseph, Anjli Mohindra, Connor Swindells, Adam James, and Gary Lewis.

Vigil begins Sunday 29th August at 9pm on BBC One.


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