One of the crime dramas we’re looking forward to most in the early part of 2026 is Under Salt Marsh on Sky Atlantic.
Rafe Spall and Kelly Reilly star in the six-episode series, and is set in the fictional Welsh town of Morfa Halen, a tight-knit community 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 (Reilly) 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.
Cefin’s death summons Jackie’s former partner, Detective Eric Bull (Spall), back to Morfa Halen to lead the investigation into a community he failed once before.
Jonathan Pryce and Harry Lawtey also star.
Look out for it in 2026.