Gu Chengyuan was naturally afraid of trouble, but Old Man Liu suddenly had a kind heart and ordered his two brothers to go to Lin'an to compete in martial arts. On the way, because the elder brother was so merciful that he squandered all his money, Gu Chengyuan had to abduct his senior brother on a wild mountain road, but he was urged by his senior brother to go north to join the army. A series of stories about a man who first arrived in the capital and saved the love of his life, and then encountered a war in the world, and worked with his brothers in the army to defend his home and country against the enemy.