
Description
A man and a woman make separate journeys to a mysterious island off the British coast.

A man and a woman make separate journeys to a mysterious island off the British coast.
As a battle for power comes to a head, Helen fights to protect her family; tensions come to a dramatic conclusion.
Helen reveals her true intentions in coming to Osea and is pressed on her past; a unique girl befriends Ellie and offers to take her to a mysterious place that is forbidden to outsiders.
Helen surprises her two daughters, Tallulah and Ellie, with a trip to Osea Island for Ellie's birthday, but the cottage she booked is suspiciously no longer available, and she cannot find a place to stay.
Sam learns the truth about his connection to Osea; Sam is in the fight of his life as he tries desperately to escape the islanders' clutches and make it back to the mainland in one piece.
Plagued by a disturbing dream, Sam awakes to find himself in a compromising situation and misses the morning crossing to return to the mainland; after a series of confusing and terrifying events leaves him shaken, Sam quickly plots a way off Osea.
After Sam 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; as he meets secretive locals, Sam finds the island difficult to escape.