Are you ready for a heart-pounding adventure on Florida's St. John's River and in the aftermath of the Civil War? The tranquil waters mask a dangerous secret as a gang of robbers target unsuspecting travelers on steamboats. Amidst this chaos, investigator Sadie Snow is on a mission to bring the culprits to justice. But when her best friend is taken hostage and murder enters the picture, Sadie realizes she's in a race for time. Will she be able to save her friend and bring the criminals to justice, or will she become their next victim?