Watch The Third Day

With a battle for power brewing, Helen comes face-to-face with what she's been searching for since arriving on the island. When the sisters are separated, Tallulah witnesses a gruesome act of violence, and Ellie learns of their mother's hidden agenda. As tensions reach a fever pitch for all those on Osea Island, Helen and her girls make a desperate final attempt to escape. Series finale.

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.

'Sunday - The Ghost.' Sam discovers the truth about his connection to Osea Island and fights to escape.

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.

[HBO] HD. 'Friday - The Father.' Series premiere. After Londoner Sam rescues a girl in the woods, he takes her home to the mysterious Osea Island.