The net tightens on the smugglers. Jem begs Joss to give up his anonymous superior. Mary struggles to know who to trust, and learns too late the true danger she is facing. Will Jem get to her in time?

When Mary suspects her uncle of murder, she confides in the local vicar, Francis Davey. Escaping some difficult home truths, Mary goes on a secret outing with Jem. Her return to Jamaica Inn is met with an unpleasant surprise.

Orphaned Mary Yellan travels to the remote Jamaica Inn to live with her Aunt Patience and brutal Uncle Joss. Isolated and alone, Mary must learn to navigate the perils of the smugglers' world and her dangerous desire for Jem Merlyn.