Based on a true story in the summer of 1943... Twelve-year-old Miguel Montoya feels left behind. Everyone else in his large family is "doing his part" during World War II. His brother is flying dangerous missions over enemy territory, and his sister and aunt are home-front volunteers. Miguel offers to take their places in the family grocery store, only to be told he's not old enough to do anything more than sweep floors and keep an eye on his bothersome little nephew, Victor. So when the Empire Theatre announces a scrap metal contest to help the war effort, Miguel decides to win! As he and his best friend, Gary, scour their San Antonio neighborhood for old scrap, they keep one eye on the military planes that fill the skies and one eye out for bullies threatening to steal their stash. When Miguel befriends a wounded soldier, though, the realities of war hit home. And on the fateful day when his family needs him most, it is Miguel who must do his part to save his nephew.