To the outside world, American President Franklin Delano Roosevelt, British Prime Minister Winston Churchill, and French general Charles de Gaulle were allies in the fight against Hitler. But behind the appearance of unity among these titans lurked contentious private battles that threatened the entire war effort. Rare archival footage; private correspondence; and interviews with historians and insiders, including FDR's grandson Curtis Roosevelt, reveal this intensely personal drama of rancor and deceit played out against the backdrop of World War II.