

The deeper you go, the darker it gets.
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.
Created byTom Edge

Season 1
No episodes found for this season.
Featuring

Suranne Jones
Amy Silva

Rose Leslie
Kirsten Longacre

Dominic Mafham
Sir Ian Downing

Steven Miller
Mark Cunningham

Keep watching
6.62011·6.6
Special Affairs Team TEN
2011 · Series
7.22025·7.2
Patience
2025 · Series
7.32020·7.3
The Walking Dead: World Beyond
2020 · Series
8.02026·8.0
Honeymoon Se Hatya
2026 · Series
7.52021·7.5
The Chestnut Man
2021 · Series

2021
The Lie Detective
2021 · Series
6.12019·6.1
Face to Face
2019 · Series
8.62025·8.6
Homicide Squad New Orleans
2025 · Series
8.01996·8.0
Profit
1996 · Series
8.01998·8.0
The FBI Files
1998 · Series
7.22020·7.2
Japan Sinks: 2020
2020 · Series
7.92023·7.9
My Lovely Liar
2023 · Series
6.11996·6.1
In Cold Blood
1996 · Series
6.62014·6.6
Ascension
2014 · Series

2000
Perfect Murder, Perfect Town
2000 · Series
8.32014·8.3
Fargo
2014 · Series
7.51997·7.5
Midsomer Murders
1997 · Series
6.52014·6.5
Gap Dong
2014 · Series
8.11971·8.1
Columbo
1971 · Series
8.52013·8.5
Peaky Blinders
2013 · Series
Picked for you
7.32022·7.3
The Devil's Hour
2022 · Series
6.32025·6.3
Grosse Pointe Garden Society
2025 · Series
7.61999·7.6
Bad Girls
1999 · Series
7.72026·7.7
Nemesis
2026 · Series
7.42015·7.4
Secrets and Lies
2015 · Series
6.52022·6.5
PIECES OF HER
2022 · Series
7.42026·7.4
56 Days
2026 · Series
6.42026·6.4
The Witness
2026 · Series
6.92024·6.9
Matlock
2024 · Series
6.32020·6.3
The Gloaming
2020 · Series
6.62026·6.6
Gone
2026 · Series
6.22022·6.2
61st Street
2022 · Series
6.82020·6.8
Hightown
2020 · Series
6.82025·6.8
Sherlock & Daughter
2025 · Series
6.92022·6.9
Sherwood
2022 · Series
7.12024·7.1
Cross
2024 · Series
7.52025·7.5
This City Is Ours
2025 · Series
7.02016·7.0
Good Behavior
2016 · Series
6.92019·6.9
L.A.'s Finest
2019 · Series
6.21983·6.2
The Hitchhiker
1983 · Series