Under Salt Marsh
6.3
Season 1
51 min
S1 · E1 · Jan 30, 2026
Episode 1 Episode 1
55 min
S1 · E2 · Jan 30, 2026
Episode 2 Episode 2
50 min
S1 · E3 · Feb 6, 2026
Episode 3 Episode 3
50 min
S1 · E4 · Feb 13, 2026
Episode 4 Episode 4
47 min
S1 · E5 · Feb 20, 2026
Episode 5 Episode 5
47 min
S1 · E6 · Feb 27, 2026
Episode 6 Episode 6
6 episodes in Season 1
Some details come from TheTVDB.
“No secrets are safe from the storm.”
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.
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Cast
42 people
Kelly Reilly
Jackie Ellis
Known for
Yellowstone
True Detective
Rafe Spall
Eric Bull
Known for
Jurassic World: Fallen Kingdom
The Ritual
Naomi Yang
Jess Deng
Known for
Peaky Blinders
Liaison
Harry Lawtey
Dylan Rees
Known for
Industry
Joker: Folie à Deux
Dino Fetscher
Gareth Morgan
Known for
Fool Me Once
Years and Years
Dinita Gohil
Nisha Jones
Known for
The Sandman
Treason
Kimberley Nixon
Shell Hill
Known for
Wild Child
Fresh Meat
Julian Lewis Jones
Osian Northam
Known for
Invictus
House of the Dragon
Jonathan Pryce
Solomon Bevan
Known for
Game of Thrones
Brazil
Osian Emlyn
James Rees
No other roles listed
Gwïon Morris Jones
Eddie Bevan
Known for
Wolf
Masters of the Air
Martyn Ellis
Jim The Chippy
Known for
Why Didn't They Ask Evans?
It's a Sin
Claire Oakley Creator · Mary Nighy Director Jonathan Harbottle Writer
Creator Director Writer Executive producer
Claire Oakley
Director
Mary Nighy
Writer
Jonathan Harbottle
Writer
Nikita Lalwani
Executive producer
Elwen Rowlands
Executive producer
Megan Spanjian
Composer
Ben Salisbury
Composer
Suvi-Eeva Äikäs
Editor
Alastair Reid
Production designer
Stevie Herbert
Costume designer
Sian Jenkins
Total runtime 6h 0m · Episode length 60 min · Type Miniseries
Show info
Premiered
January 30, 2026
Final episode
February 27, 2026
Status
Ended
Networks
Sky One · Sky Atlantic · Sky Max
Country
United Kingdom
Type
Miniseries
Episode length
60 min
Total runtime
6h 0m
Original language
English
Production
Sky Studios
Production
Little Door Productions
Production
Sky Original Productions
Production
United Kingdom
Produced in
Languages
Spoken on screen
English
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Some details come from TheTVDB.