A determined sixteen-year-old boy secures funds and pursues appointment to the military academy, preparing for examinations and entry despite family worries and financial strain. The narrative traces his arrival, training, challenges and camaraderie at the academy, including a dangerous attack and an explosion that lead to injury, investigation, and a revealing clue. Recovering and facing disciplinary and personal tests, he ultimately makes restitution and completes his course, graduating as the story concludes.