• E3
• 0 hrs 58 min
• 5th September 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 on Vigil.

• E4
• 0 hrs 58 min
• 12th September 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
• 0 hrs 58 min
• 19th September 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
• 0 hrs 58 min
• 26th September 2021

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.