When fiery and idealistic Kitty O’Kane escapes the crushing poverty of Dublin’s tenements, she’s determined that no one should ever suffer like she did. As she sets out to save the world, she finds herself at the forefront of events that shaped the early twentieth century. While working as a maid, she survives the sinking of the Titanic. As a suffragette in New York’s Greenwich Village, she’s jailed for breaking storefront windows. And traveling war-torn Europe as a journalist, she’s at the Winter Palace when it’s stormed by the Bolsheviks. Ultimately she returns to her homeland to serve as a nurse in the Irish Civil War.

During Kitty’s remarkable journey, she reunites with her childhood sweetheart, Tom Doyle, but Tom doesn’t know everything about her past—a past that continues to haunt her. Will Kitty accept that before she can save everyone else, she needs to find a way to save herself? Or will the sins of her past stop her from pursuing her own happiness?