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.
Latest episode
UK episode date: 14 Sept 2026
Amy finds herself on the wrong side of the law, and Kirsten puts herself in danger to keep Amy safe and get to the truth – leading to the hardest choice of their careers.
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DCI Amy Silva
DS Kirsten Longacre
DSU Colin Robertson
Fyodor Zamorin
