E1 • Episode 1

When a crew member is found dead on Trident nuclear submarine HMS Vigil, Detective Amy Silva is flown onboard to investigate.

1 h • 2021

When a crew member is found dead on Trident nuclear submarine HMS Vigil, Detective Amy Silva is flown onboard to investigate.

E2 • Episode 2

With Vigil in danger, Amy must fight to continue her investigation. Meanwhile Kirsten's enquiries lead to tragedy.

57m • 2021

With Vigil in danger, Amy must fight to continue her investigation. Meanwhile Kirsten's enquiries lead to tragedy.

E3 • 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.

58m • 2021

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.

E4 • 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.

53m • 2021

Kirsten closes in on the killer, but their capture reveals the grave threat that Vigil faces. On the submarine, Amy makes a terrifying discovery.

E5 • 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.

53m • 2021

Vigil is forced into lockdown as disaster strikes. With communication lost, Kirsten desperately hunts for clues to the source of the threat to Vigil.

E6 • Episode 6

Amy is trapped and running out of time. Vigil's crew must identify the traitor or risk tragedy.

53m • 2021

Amy is trapped and running out of time. Vigil's crew must identify the traitor or risk tragedy.