For years, the relationship between Great Britain and the American colonists had been wearing thin. Colonists felt they were being treated unfairly. The British thought they were putting down a rebellion. On April 19, 1775, the two sides clashed at Lexington and Concord. The American Revolution was about to begin. Now readers can step back in time to learn about what led up to the battles, how the historic events unfolded, and the ways in which one shot changed America forever.