Les amis sont rares quand on joue du clairon mieux que tout le monde et qu'on dénonce des soirées clandestines. Jeune scout à lunettes, Nelson est un solitaire. Envers et contre tout, il sait qu'il deviendra un leader. Un héros, peut-être. Trente ans plus tard, que reste-t-il de lui chez ce vétéran hanté par la guerre du Vietnam ? Des cartes de base-ball et les souvenirs épars du camp Chippewa...

Camp Chippewa, 1962. Thirteen-year-old Nelson, loner and over-achiever, is nicknamed the Bugler as he proudly sounds the reveille each morning. This is the summer that everything changes, marking the beginning of Nelson's uncertain friendship with a popular boy named Jonathan, and the discovery of his father's betrayal, which tears his family apart. As time moves on, Nelson, irrevocably scarred from the Vietnam War, becomes Scoutmaster of Camp Chippewa, while Jonathan marries, divorces, and transforms his father's business. When something unthinkable happens during a visit from Jonathan's grandson and daughter-in-law, the aftermath tests the depths - and the limits - of Nelson's selflessness and bravery.