Join DCI Amy Silva (Suranne Jones) and DI Kirsten Longacre (Rose Leslie) as they unravel a new high-stakes conspiracy at the heart of British military operations. Leaving the murky depths of the Atlantic behind, this time Silva and Longacre are looking to the skies, entering the secret world of drone warfare to catch a killer.

Following multiple unexplained fatalities at a Scottish military facility, they are tasked with uncovering the cause. As they navigate the hostile and closed ranks of the air force, the pair must face the deadly warfare of tomorrow as they fight for their own future. Alongside the return of Suranne Jones, Rose Leslie and Gary Lewis, series two sees Romola Garai and Dougray Scott joining the star-studded cast. Vigil's first instalment, which won an International Emmy and collected multiple BAFTA nominations, was the most-watched new drama launch in the UK since Bodyguard in 2018.