When newlywed FBI agent and brilliant linguist Libby Shaw is warned that her death is imminent, she'll do anything she can to survive—even take mysterious advice to submerge in mineral water of Bedford Springs during a full moon. Libby finds herself thrust back in time to 1926, where danger and intrigue surround her. As Libby tries to adapt to her new life, she finds herself oddly drawn to the town sheriff who seems to know her far better than she knows herself. Yet he seems eerily familiar and as pieces of a past start surfacing in dreams and visions, Libby seeks out the handsome sheriff for answers, only to find more questions.

As Libby learns someone is following her to change history, she must join forces with the sheriff to uncover the mystery of their past. Will they be thwarted by the master criminal who's determined to destroy them both or will they be able to build a life together after lifetimes of being pulled apart by nefarious forces?