As the Civil War draws near, Nate knows he must fight for his Southern homeland. Meanwhile, his cousin Walt in Canada fears that Britain and her colonies could be drawn into the war--on the side of the Confederate South, and slavery. Walt believes slavery is wrong. He could never fight in defense of it. Nate and Walt have never met, but as a country descends into chaos, a runaway slave named Sunday is about to change the cousins' lives forever.