Under Salt Marsh (2026)

★ 6.9 1h 0m 1 Seasons 34 votes IMDb

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.

Under Salt Marsh

Where to Watch

Streaming Services

Netflix
Netflix Plans from $6.99/mo. Stream thousands of movies and TV series on demand. No ads on Standard and Premium plans. Download for offline viewing.
Amazon Prime Video
Amazon Prime Video Included with Amazon Prime ($14.99/mo). Access thousands of movies and shows. Option to rent or buy titles not in Prime catalog.
Amazon Prime Video
Amazon Prime Video Included with Amazon Prime ($14.99/mo). Access thousands of movies and shows. Option to rent or buy titles not in Prime catalog.
Disney Plus
Disney Plus Starting at $7.99/mo. Home to Disney, Pixar, Marvel, Star Wars and National Geographic. Family-friendly content with downloads available.
HBO Max
HBO Max Plans from $9.99/mo with ads, $15.99/mo ad-free. HBO original series, blockbuster movies, and Max exclusives.
Max
Max Plans from $9.99/mo with ads, $15.99/mo ad-free. Formerly HBO Max. HBO originals, Warner Bros. movies, and exclusive content.
Hulu
Hulu Plans from $7.99/mo with ads, $17.99/mo ad-free. Next-day TV shows, Hulu originals, movies. Live TV add-on available ($76.99/mo).
Paramount Plus
Paramount Plus Plans from $5.99/mo with ads. CBS shows, Paramount movies, Champions League soccer, NFL games on select plans.
Apple TV Plus
Apple TV Plus $9.99/mo after 7-day free trial. Award-winning Apple original films and series. Available on all Apple devices and smart TVs.
Peacock
Peacock Free tier available. Premium from $7.99/mo. NBC shows, Universal movies, live sports including Premier League and NFL.
Showtime
Showtime $10.99/mo standalone or as add-on. Premium original series like Dexter, Billions, and championship boxing.
Starz
Starz $9.99/mo or as add-on through other services. Premium movies, original series, and early theatrical releases.
Paramount+ with Showtime
Paramount+ with Showtime $11.99/mo. Combined access to Paramount+ and Showtime content. Movies, series, live sports, and premium originals.
MUBI
MUBI $12.99/mo. Hand-picked art house and independent cinema. One new film added daily, curated by film experts worldwide.
Criterion Channel
Criterion Channel $10.99/mo. Classic, art house, and world cinema. Curated collections, filmmaker spotlights, and rare films.
YouTube Premium
YouTube Premium $13.99/mo. Ad-free YouTube, YouTube Music, and original series. Background play and offline downloads.
MGM Plus
MGM Plus Subscription streaming service
BritBox
BritBox $8.99/mo. The largest collection of British TV. BBC and ITV shows, mysteries, dramas, comedies, and documentaries.

We're checking 300+ streaming services for this title. Check back soon.

Seasons & Episodes

Now playing: Season 1, Episode 1

Audience Reviews

annatv22 10/10 Feb 01, 2026
Moody Welsh crime drama with a standout Kelly Reilly and strong supporting cast. A slow burn at first, but rewarding once it finds its pace. Highly recommend.
MovieGuys 6/10 Feb 21, 2026
Strong cast, intriguing crime thriller, but as per usual let down by dreary DEI baggage.

Let's start with the positives: the Welsh setting with a village under siege by rising ocean levels is a little unique. The crime drama, which spans two unsolved murders of children, is darkly disturbing with lots of twists and turns. Equally quality acting offers up well-rounded, often flawed characters.

The downside is by now wholly predictable. The incessant need to ram DEI messaging down the viewer's throat. Personally I find it downright tiresome and pointless.

In summary, it could have been a great series, but it's spoilt to a decent degree by the compulsion to inject woke narratives into what is supposed to be entertainment. An okay watch.

Similar Movies