Sky has released the first teaser trailer for ‘Under Salt Marsh’, a new six-part Sky Original crime drama set in the fictional Welsh coastal town of Morfa Halen. The series stars Kelly Reilly (Yellowstone, Pride & Prejudice) as Jackie Ellis and Rafe Spall (Trying, Life of Pi) as Detective Eric Bull, in what promises to be one of Sky’s most gripping dramas of 2026.
Created, written, and directed by Claire Oakley (Make Up), ‘Under Salt Marsh’ begins as a once-in-a-generation storm rolls in from the sea. Former detective turned teacher Jackie Ellis (Reilly) makes a shocking discovery that reopens the wounds of a three-year-old cold case — one that destroyed her career and fractured her family.
Drawn back into the investigation, Jackie is forced to reunite with her estranged former partner Eric Bull (Spall). Together, they must face a community haunted by secrets, grief, and suspicion before the storm threatens to wash the truth away for good.
The impressive supporting cast includes Naomi Yang (Chimerica), Jonathan Pryce (The Crown), Dinita Gohil (Treason), Brian Gleeson (Bad Sisters), Kimberley Nixon (Queenie), and Harry Lawtey (Industry). They’re joined by Mark Stanley (Happy Valley, The Reckoning), Dino Fetscher (Fool Me Once, Foundation), Lizzie Annis (The Witcher: Blood Origin, Extraordinary), Rhodri Meilir (Pren Ar y Bryn, Craith), and Julian Lewis Jones (House of the Dragon, Wheel of Time).
Produced by Little Door Productions in association with Sky Studios, ‘Under Salt Marsh’ received support from the Welsh Government via Creative Wales. The series is written by Oakley, Jonathan Harbottle (Episodes 3 & 5), and Nikita Lalwani (Episode 4), with Oakley directing alongside Mary Nighy (Episodes 3 and 4).
‘Under Salt Marsh’ will launch on Sky and streaming service NOW in 2026. If you want to keep track of this or any other shows, you can add them via our Never Miss system, and you’ll be notified when it gets a UK premiere date. Visit Never Miss.
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