Shen Ce, the son of a distinguished military family, is regarded by everyone as a bookworm who does nothing but bury his nose in books. Even his father, the great general who protects the nation, looks down on him for being physically weak. When Mo Le, the Northern Rong military strategist, arrives with an envoy delegation to provoke the Great Yong and presents three tricky military strategy challenges, hoping to crush the army's morale on the battlefield model, Shen Ce steps forward. Drawing on his extensive knowledge of military strategy, he repeatedly solves their challenges and proposes three strategies for defending the border, along with a tactical plan using the Crescent Moon Formation to defeat the Iron Pagoda Cavalry. As his strategies are put into practice, farmland is developed to strengthen the frontier and a scorched-earth defense is implemented, forcing Northern Rong to pay tribute and surrender. The once-scorned young scholar grows into a legendary young military genius who protects the nation's borders.