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Now playing: Season 1, Episode 1 — The Blackwater
Love is the greatest mystery.
London widow Cora Seaborne moves to Essex to investigate reports of a mythical serpent. She forms a surprising bond of science and skepticism with the local vicar—but when tragedy strikes, locals accuse her of attracting the creature.
1. The Blackwater
2022-05-13
London widow Cora Seaborne relocates to Essex to learn the truth about a rumored “sea dragon.” When a local girl goes missing, fears escalate.
2. Matters of the Heart
2022-05-13
Cora moves to Aldwinter, but the grieving villagers don't welcome her. Naomi struggles with her guilt about what happened to Gracie.
3. Falling
2022-05-20
After fishermen claim they were attacked by the serpent, Cora becomes more determined to understand what's in the water.
4. Everything Is Blue
2022-05-27
Luke throws a birthday party for Cora. During an eventful night, Cora and Will get closer—and Luke notices Stella is hiding something.
5. I Break Things
2022-06-03
Cora tries to put things behind her, but a chance encounter makes that complicated. Stella gets some bad news.
6. Surfacing
2022-06-10
Luke processes the incident. Cora has a realization. Will struggles with Stella's illness.
Claire Danes
Cora Seaborne
Tom Hiddleston
Will Ransome
Frank Dillane
Dr Luke Garrett
Clémence Poésy
Stella Ransome
Hayley Squires
Martha
