In order to survive and realize his dream, Tie Zhenguo, who returned home from the military, went to work at a construction site in Beijing with his brothers Tietou and Gao Zhong. At the construction site, Tie Zhenguo, who had no basic knowledge of construction, endured humiliation and became a disciple, practicing hard. Under the teachings of his mentor Ma Yifang and his own thinking, he grew into an excellent construction worker. However, an accident almost made him lose his ability to work, and he fell from the peak of his career to the bottom of his life, and all his dreams were on the verge of being shattered. Gao Zhong passed the college entrance examination and re-entered the city and became an architectural designer. With a bright future, he was tempted by fame and fortune and embarked on a road of no return step by step, even at the cost of being an enemy of Tie Zhenguo. After experiencing emotional blows and brothers turning against each other, Tie Zhenguo returned to Beijing, which had once hurt him, with his unyielding spirit, and led a group of hometown people to start an arduous entrepreneurial journey, writing a dream-chasing journey of a generation of construction iron army.