The thrilling story of one of the greatest gambles of Benjamin Franklin's career. At age 70, without any diplomatic training, Franklin convinced France - an absolute monarchy - to underwrite America's experiment in democracy. By virtue of his fame, charisma and ingenuity, Franklin outmaneuvered British spies, French informers and hostile colleagues, all while engineering the Franco-American alliance of 1778 and the final peace treaty with England of 1783. The eight-year French mission stands as Franklin's most vital service to his country, without which America would not have won the Revolution.