BBC drama Vigil is set to return for a third series, with Suranne Jones and Rose Leslie reprising their roles.
The first series aired back in 2021 and it followed DCI Amy Silva (Jones) as she investigated a death on board the nuclear submarine HMS Vigil.
The second series switched things up, giving a more prominent role to DI Kirsten Longacre (Leslie) and focusing on a death related to drone warfare technology.
Now the third series will see the duo at a remote Arctic research station, where a member of a covert British special forces mission has been murdered.
The pair must solve the case while navigating rising international tensions over control of the Arctic and its resources.
A synopsis adds: "Amy and Kirsten will need to catch the killer and defuse a potential international confrontation, as different nations compete for control of the Arctic and its resources in the changing polar climate, with both their careers and relationship on the line.
"As the mission rapidly unfolds, Amy and Kirsten begin to question who they can trust.
Discussing where her character is at at the start of series three, Jones shared: "All of the Vigil series are about fighting for truth, coming up against the bigger picture and wanting the world to be a better place, so that really attracted me.
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"Each series also brings new challenges with Amy not knowing her surroundings – she’s constantly put into these new worlds, with new rules and new characters and so she’s always trying to figure out where her authority is in that.
"I also think Amy and Kirsten are kept in the dark with what they’re being told and it’s their job to find the gaps and piece it together."
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The first episode of Vigil series three will air at 9pm on Sunday, August 30 on BBC One.
The second will follow the next day in the same timeslot on Monday, August 31.
After that, the remaining four episodes will air in the same pattern and will be available to watch on BBC iPlayer.
