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The Blackwater

Episode number: 1

Overview: London widow Cora Seaborne relocates to Essex to learn the truth about a rumored “sea dragon.” When a local girl goes missing, fears escalate.

Matters of the Heart

Episode number: 2

Overview: Cora moves to Aldwinter, but the grieving villagers don’t welcome her. Naomi struggles with her guilt about what happened to Gracie.

Falling

Episode number: 3

Overview: After fishermen claim they were attacked by the serpent, Cora becomes more determined to understand what’s in the water.

Everything Is Blue

Episode number: 4

Overview: Luke throws a birthday party for Cora. During an eventful night, Cora and Will get closer—and Luke notices Stella is hiding something.

I Break Things

Episode number: 5

Overview: Cora tries to put things behind her, but a chance encounter makes that complicated. Stella gets some bad news.

Surfacing

Episode number: 6

Overview: Luke processes the incident. Cora has a realization. Will struggles with Stella's illness.