Flashback

Fleeing a marriage proposal, Anna Pigeon accepts a temporary ranger position on the isolated Garden Key in Dry Tortugas National Park, where she encounters a haunting past tied to the Civil War. Amidst the stunning yet remote setting, her life takes a dark turn with a mysterious boat explosion and the discovery of dismembered body parts. As she unravels a complex web of historical and contemporary crimes, Anna finds herself battling both the elements and her own sanity, all while cut off from the mainland. With limited support, she must dig for the truth before the shadows of the past consume her.