1915: Tessa Fairchild boards the Lusitania and meets Julian Ashford, an intelligence officer. Amidst espionage, they fall in love. The ship sinks, and a legendary necklace, the Heart of the Sea, disappears.
1938: Sarah Blake, working for Robert Langford, whose mother survived the Lusitania, uncovers family secrets and the necklace's mystery through letters from an anonymous survivor. ⬇️