The Titanic was only the beginning. What she survived has become legend.

Violet Jessop is Miss Unsinkable.

Violet is a stewardess and wartime nurse who not only survives a shipwreck but also two sinkings, one on the infamous Titanic. No one can understand why she would return to sea, but Violet is simply trying to survive. Her childhood was fraught with illness and death in her family. Her distraught mother is too ill to work, that responsibility falling to Violet as the oldest of nine. When the world enters the Great War, she becomes aboard as a nurse, helping men who could very well be her brothers. But disaster strikes again, this time as the Britannic strikes a mine. Miraculously, Violet survives, but her obligation to her mother and siblings still remains, leaving Violet to wonder if she'll ever be able to put her tumultuous life at sea behind her and pursue a life and love all her own.

Daphne has survived calamity of her own.

Daphne Chaundanson grows up as an unwanted child after her mother died in a tragedy. She throws herself into education, collecting languages like candy in a desperate attempt to finally earn her father's approval. When the Special Operations Executive invites her to be an agent in France in World War II, her childhood of anonymity and her love of languages make her the perfect fit. She sees it as an opportunity to help the country she loves and live up to her father's expectations. But unthinkable moments of challenge and resilience change Daphne in ways she could never expect, including an eye-opening encounter where she must come to terms with the secrets in her own past.

Two unsinkable women. Two stories of survival, family, and finding one's own happiness. One connection that reshapes both their lives forever.