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.
Episodes
Episode 1
When a crew member is found dead aboard the Trident nuclear submarine HMS Vigil, Detective Amy Silva is flown out to investigate.
Episode 2
With Vigil in danger, Amy must fight to continue her investigation. Meanwhile, Kirsten’s enquiries lead to tragedy.
Episode 3
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
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
Vigil is forced into lockdown as disaster strikes. With communication lost, Kirsten desperately hunts for clues to the source of the threat to Vigil.
Episode 6
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.
Top Cast
Suranne Jones
DCI Amy Silva
Rose Leslie
DS Kirsten Longacre
Romola Garai
Eliza Russell
Gary Lewis
DSU Colin Robertson
Chris Jenks
Callum Barker
Jonathan Ajayi
Wes Harper
Amir El-Masry
Daniel Ramsay
Oscar Salem
Captain Sattam Abdul Kader
Dougray Scott
Marcus Grainger
