Sophie Frangos is torn between the love of two men and the promise that binds them all together. Markos Stavros loves Sophie from afar while battling his thirst for vengeance and his hunger for honor. Dino, his quiet and intelligent brother, simply wants to forget the horror that drove them from their Greek island home to start a new life in America. One of these "sons of thunder" offers a future she longs for, the other—the past she lost. From the sultry Chicago jazz clubs of the roaring twenties to the World War II battlefields of Europe to a final showdown in a Greek island village, they’ll discover betrayal, sacrifice and finally redemption. Most of all, when Sophie is forced to make her choice, she’ll learn that God honors the promises made by the Sons of Thunder.