Under Salt Marsh
CrimeMystery

Under Salt Marsh

“No secrets are safe from the storm.”

6.6/10 2026 1 Season 6 Episodes

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.

On screen

Top Cast

Kelly Reilly

Kelly Reilly

Jackie Ellis

Rafe Spall

Rafe Spall

Eric Bull

Naomi Yang

Naomi Yang

Jess Deng

Harry Lawtey

Harry Lawtey

Dylan Rees

Dino Fetscher

Dino Fetscher

Gareth Morgan

Dinita Gohil

Dinita Gohil

Nisha Jones

Kimberley Nixon

Kimberley Nixon

Shell Hill

Julian Lewis Jones

Julian Lewis Jones

Osian Northam

Jonathan Pryce

Jonathan Pryce

Solomon Bevan

Osian Emlyn

Osian Emlyn

James Rees

Gwïon Morris Jones

Gwïon Morris Jones

Eddie Bevan

Martyn Ellis

Martyn Ellis

Jim The Chippy

Episodes guide

Seasons

Miniseries

Miniseries

6 episodes · 2026

Preview

Official Trailer

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