The Bay S05e03 360p [upd] -

Jenn and Med raid the farm at dusk. In the barn, they find Leah's phone and a bloodied tarpaulin – but also another girl, Chloe (16) , locked in a root cellar. Chloe whispers that Marcus "got rid of Leah because she was going to talk."

CCTV from the arcade shows Leah getting into a grey BMW the night she disappeared. Using traffic cameras, the team traces the car to a farm outside Grange-over-Sands. The farm owner is Marcus Slater , a former foster carer. Leah lived with him briefly three years ago. the bay s05e03 360p

Marcus is arrested while trying to flee across the sands. In the back of the police car, he looks at Jenn and says: "You think you're saving them? You can't even save your own daughter." (Jenn has no daughter – he's clearly confusing her with someone else... or is he?) Jenn and Med raid the farm at dusk

The episode opens with DS Jenn Townsend under immense pressure. The discovery of a young woman's body in the Morecambe Bay tides links back to an unsolved case from three years ago. DCI Manning warns her that if she doesn't get a result in 48 hours, the case will be handed over to the Major Investigation Team. Using traffic cameras, the team traces the car

Here is the (titled "The Enemy Within" or similar, depending on the source):