The summer of 1949 changes everything for Andy and his three best friends. That is the summer they find an unexploded bomb buried in the hill where they ride their bikes. Faced with the choice of whether or not to reveal their discovery, the boys take a blood oath that will change their lives forever. Set against a crisply realized backdrop of post-war Britain, this explosive story of boyhood camaraderie follows the four friends as they confront the issues that have set their country, their community, and their lives ablaze.