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Poster for Under Salt Marsh

TV series

Under Salt Marsh

No secrets are safe from the storm.

2026 · 1 season · 6 episodes

Created by Claire Oakley

6.6

TMDB audience score
68 votes, out of 10

Trailer Where to watch

Synopsis

Morfa Halen is a tight-knit Welsh town precariously nestled between towering mountains and a fast-encroaching sea that threatens its very existence. As a once-in-a-generation storm begins to gather far out at sea, former detective turned teacher Jackie Ellis discovers the body of her 8-year-old pupil, Cefin, seemingly drowned. The discovery sends shockwaves through the community, reviving the ghost of an unsolved cold case that rocked the town three years prior - the disappearance of Jackie’s niece, Nessa, which cost her career.

About 6h to watch every episode. An estimate: 6 episodes at the typical episode runtime of 60 minutes.

Where to watch

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Trailer

Play trailer: Official Trailer

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Main cast

  • Kelly Reilly
    Jackie Ellis
    6 episodes

  • Rafe Spall
    Eric Bull
    6 episodes

  • Naomi Yang
    Jess Deng
    6 episodes

  • Harry Lawtey
    Dylan Rees
    6 episodes

  • Dino Fetscher
    Gareth Morgan
    6 episodes

  • Dinita Gohil
    Nisha Jones
    6 episodes

  • Kimberley Nixon
    Shell Hill
    6 episodes

  • Julian Lewis Jones
    Osian Northam
    6 episodes

  • Jonathan Pryce
    Solomon Bevan
    6 episodes

  • Osian Emlyn
    James Rees
    6 episodes

  • Gwïon Morris Jones
    Eddie Bevan
    6 episodes

  • Martyn Ellis
    Jim The Chippy
    6 episodes

  • Sam C. Wilson
    Bryn Bevan
    6 episodes

  • Amara Atwal
    Nessa Taman
    6 episodes

  • Mark Stanley
    Danny Hill
    5 episodes

  • Lizzie Annis
    Cara Rees
    5 episodes

  • Brian Gleeson
    Mac Jones
    5 episodes

  • Dritan Kastrati
    Victor Antonov
    5 episodes

Seasons