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.
Cast
Kelly Reilly
Jackie Ellis
Rafe Spall
Eric Bull
Jonathan Pryce
Solomon Bevan
Naomi Yang
Jess Deng
Harry Lawtey
Dylan Rees
B
Bevan Thomas
Bevan Bevan
Seasons & Episodes1 season · 6 episodes
0% complete
E1Episode 1
Jan 30, 202652m★ 5.8
When ex-detective-turned-teacher Jackie Ellis discovers one of her pupils dead, her estranged partner DS Bull returns to investigate.
E2Episode 2
Jan 30, 202656m★ 5.8
Old accusations resurface as Jackie and Bull must put aside years of mistrust before the town's tensions ignite into violence
E3Episode 3
Feb 6, 202651m★ 5.8
With the town turning on itself as long-buried secrets emerge, Jackie and Bull's fragile partnership is tested by a new discovery.
E4Episode 4
Feb 13, 202651m
DNA evidence exposes a devastating truth, forcing Jackie and Bull to choose between protecting themselves or those they love.
E5Episode 5
Feb 20, 202648m★ 4.7
Rising floodwater cuts Morfa Halen off from the world as another body is discovered, with Bull closing in on the truth behind an illegal operation at the heart of all three cases.
E6Episode 6
Feb 27, 202647m★ 7.7
Jackie and Bull discover the horrifying truth behind the crimes that haunt Morfa. As Bull fights for his life and Jackie faces an unbearable choice, the storm reaches its peak.
About Under Salt Marsh
Under Salt Marsh is a crime, mystery series on Sky One. The show first aired on Jan 30, 2026 and currently has 1 season and 6 episodes. Under Salt Marsh has ended after 1 seasons. It has a rating of 6.8/10 based on 38 votes. The cast includes Kelly Reilly, Rafe Spall, Jonathan Pryce, Naomi Yang, Harry Lawtey. Created by Claire Oakley.
