Episode 1

1939. As civilization teeters on the brink of war, ten strangers are persuaded to retreat from their troubled lives to Soldier Island, an isolated rock off the Devon coast.

Episode 2

As the sun rises and sets on the island and its solitary mansion, the number of guests is whittled down by their invisible enemy – to seven, to six, to five…

Episode 3

Cut down to half their original number, the guests of Soldier Island are in danger of losing their minds to fear and anxiety.