
The Third Day
There are things here you cannot escape.
A unique story told over two distinct halves, "Summer" follows Sam, a man drawn to a mysterious island off the British coast where he encounters a group of islanders set on preserving their traditions at any cost. "Winter" follows Helen, a strong-willed outsider who comes to the island seeking answers, but whose arrival precipitates a fractious battle to decide its fate.
Episodes

Friday - The Father
After Sam, a London family man in crisis, rescues a troubled young girl in the woods, he brings her home to the ominous Osea Island, where inhabitants are preparing for a curious annual festival involving the island's history. As he meets Osea's secretive locals, Sam grows increasingly desperate to return to the mainland to make an important call - but the island proves difficult to escape.

Saturday - The Son
Plagued by a disturbing dream, Sam awakes to find himself in a compromising situation and, having missed the morning crossing to return to the mainland, spends the day trying to learn more about the islanders’ beliefs. After a series of confusing and terrifying events leaves him shaken, Sam quickly plots a way off Osea with Jess, but is convinced to stay put as the islanders prepare for a dry run of their big event.

Sunday - The Ghost
Sam is shocked to learn the truth about his connection to Osea and the islanders’ intentions for his future. Later, in a fight for his life, Sam tries desperately to escape their clutches and make it back to the mainland in one piece.

Monday - The Mother
Winter. Helen surprises her two daughters, Tallulah and Ellie, with a trip to Osea Island for Ellie's birthday. After finding that the cottage she booked is suspiciously no longer available, Helen scours the island for a place to stay, but finds resistance at every turn.

Tuesday - The Daughter
As the islanders prepare for a fateful birth, Helen reveals her true intentions in coming to Osea and, after joining a search party, is pressed on her past. A peculiar girl befriends Ellie and offers to take her to a mysterious place closed off to outsiders.

Last Day - The Dark
Helen protects her family as tensions come to a dramatic conclusion.
Trailers & More
About The Third Day
- Creators
- Dennis Kelly, Felix Barrett
- Cast
- Jude Law, Katherine Waterston, Freya Allan, John Dagleish, Mark Lewis Jones, Börje Lundberg
- Genres
- Mystery, Drama, Sci-Fi & Fantasy
- Content rating
- TV-MA
- Original language
- English
- Production countries
- United Kingdom, United States of America
- Status
- Ended
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