The remaining players strategize on how to survive the night. Gi-hun proposes a risky plan - but he will need trustworthy allies to carry it out.

Detective Kat Donovan is confronted with her past when she encounters the man she once loved - and learns some news about one she loathes.

The final episode brings Vera back to a familiar place when a body is found at the foot of legendary local stones The Dark Wives - with memories of childhood in the background, Vera must work hard to uncover the mystery of why a bright young student would be violently attacked and left so far from home. This poignant episode weaves together past and present and makes for a compelling and emotional farewell.

While the SAS find both friends and enemies in Sicily, at Gavi prisoner of war camp, David Stirling receives an unexpected visitor.

The ultimate reality game of detection, backstabbing and trust suddenly becomes very real as the first dramatic banishment takes place, sending shockwaves and suspicion throughout the castle.

When Dr Jim Swire discovers his daughter, Flora, has been killed in the bombing of Pan Am Flight 103, he begins to search for answers. Desperate to know why this was allowed to happen, and exactly who was responsible, Jim starts to ruffle the feathers of authoritative figures in order to get them working.