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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Jan 30, 2026 · 52m
When ex-detective-turned-teacher Jackie Ellis discovers one of her pupils dead, her estranged partner DS Bull returns to investigate. Jackie finds the body of her nine-year-old pupil, Cefin, seemingly drowned. The discovery revives the ghost of an unsolved cold case that rocked the town three years prior.
Jan 30, 2026 · 56m
Old accusations resurface as Jackie and Bull must put aside years of mistrust before the town's tensions ignite into violence
Feb 6, 2026 · 51m
With the town turning on itself as long-buried secrets emerge, Jackie and Bull's fragile partnership is tested by a new discovery.
Feb 13, 2026 · 51m
Jackie struggles after her estranged sister returns and reignites years of guilt and betrayal, while Bull finds himself faced with two cases that are undeniably linked.
Feb 20, 2026 · 48m
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.
Feb 27, 2026
Quick answers about this season's release timeline and episode lineup.
Under Salt Marsh Season 1 premiered on January 30, 2026.
Under Salt Marsh Season 1 has 6 episodes.
The season opens with Season 1 Episode 1, "Episode 1". It aired on January 30, 2026.
Go to Season 1 Episode 1