Over the credits: a news report on Coyle’s arrest. Karen calls Jenn: “SIM card’s second layer just decrypted. There’s a video. Leah recorded everything. Including who picked her up that night.” Jenn’s face tightens. The video thumbnail shows a car’s back seat — and a familiar face behind the wheel. End episode. Tagline: Some secrets drown. Others wash ashore.
Ewan tries to flee on his boat as the tide rises. Jenn and Tony give chase in a police launch (striking HD aerial shot of the boat weaving through mist). Ewan rams a jetty and runs into an abandoned pumping station. Jenn corners him in a flooded basement. Ewan smiles: “You think I did it alone? Bill sold me the location — he knew Leah was a runner. He said ‘no one looks for runaways in the tide.’” Jenn presses record on her phone. “Say that again.” the bay s05e04 1080p hd
At the station, DI Tony Manning (Daniel Ryan) warns Jenn off reopening old wounds. “Leah’s mum did her grieving. Don’t make her do it again without evidence.” But Jenn runs the SIM card — it pings a tower near the old Heysham caravan park , abandoned since 2020. She visits Carol Porter (guest star Lesley Sharp), Leah’s mother, now living in a tidy bungalow with a shrine to her daughter. Carol is brittle, rehearsed. “The police said tide took her.” Jenn notices a man’s work boot by the back door — size 13. Carol’s husband, Dave , supposedly left two years ago. Over the credits: a news report on Coyle’s arrest
Tony and Jenn confront Coyle ( Philip Whitchurch ) at a civic dinner. Coyle laughs it off. “Ewan was harmless. Just a flasher.” But Jenn notices Coyle’s cufflinks — navy blue with an Omega logo. She asks where he got them. Coyle’s smile freezes. “Gift.” Cut to: Ewan’s canal boat. Karen and uniform find a hidden locker — inside: the vintage Omega watch, a lock of child’s hair, and a handwritten note: “Bill knows.” Leah recorded everything
Jenn pressures Carol again. Carol breaks: Dave didn’t leave — he’s in the shed. Jenn finds Dave ( Paul Higgins ) living in a locked garden shed, gaunt, terrified. He confesses: the night Leah vanished, he saw Ewan leading her toward the water. Dave followed, but the tide came in fast. He lost them. He’s stayed hidden because Ewan threatened his family. “He said he’d hurt Carol if I talked.” Jenn checks Ewan’s record — the indecency charge was dropped due to “insufficient evidence.” The arresting officer? Retired DC Bill Coyle , now a local councillor.