Seventeen year-old Maddie Bradford, once a brain damaged shut-in with remarkable abilities, has found her true calling as a spy for the Union in the Civil War. Fearless, a crack shot, a trained fighter and a master of disguise, she is pursued by a female Confederate assassin bent on her destruction... and shockingly, her look-alike. With her pursuer close on her heels, Maddie is on a rogue mission to rescue her beloved handler, Timothy Webster, Detective Allan Pinkerton's top spy, who is facing execution in the Confederate capital at Richmond, Virginia. Descend with Maddie into the bloody underbelly of a war waged in secret.