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.
Where to watch
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Apple TV
see all options Availability data: JustWatch
- Seasons
- 1
- Episodes aired
- 6
- Latest aired
- S01E06
- Total runtime
- 5h 8min
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S01E01 The Blackwater
May 13 · 53min find the promo
Show synopsis
London widow Cora Seaborne relocates to Essex to learn the truth about a rumored “sea dragon.” When a local girl goes missing, fears escalate.
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S01E02 Matters of the Heart
May 13 · 53min find the promo
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Cora moves to Aldwinter, but the grieving villagers don't welcome her. Naomi struggles with her guilt about what happened to Gracie.
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S01E03 Falling
May 20 · 45min find the promo
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After fishermen claim they were attacked by the serpent, Cora becomes more determined to understand what's in the water.
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S01E04 Everything Is Blue
May 27 · 52min find the promo
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Luke throws a birthday party for Cora. During an eventful night, Cora and Will get closer—and Luke notices Stella is hiding something.
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S01E05 I Break Things
June 3 · 51min find the promo
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Cora tries to put things behind her, but a chance encounter makes that complicated. Stella gets some bad news.
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S01E06 Surfacing
June 10 · 54min find the promo
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Luke processes the incident. Cora has a realization. Will struggles with Stella's illness.