The episode begins with a jagged, aerial shot of Morecambe Bay at dawn. The tide is out, exposing the treacherous sands. A lone figure, DS Lisa Armstrong (or a similar protagonist), stands at the water’s edge. She isn't looking at the horizon; she is looking at a piece of evidence bobbing in the shallow surf—a blue nylon backpack that was reported missing in Episode 2.
The episode begins with a jagged, aerial shot of Morecambe Bay at dawn. The tide is out, exposing the treacherous sands. A lone figure, DS Lisa Armstrong (or a similar protagonist), stands at the water’s edge. She isn't looking at the horizon; she is looking at a piece of evidence bobbing in the shallow surf—a blue nylon backpack that was reported missing in Episode 2.