Wang Tiezhu is an ordinary mechanical worker and a senior fitter at Haicheng No. 1 Machinery Factory. Over the years, his conscientious and responsible attitude and superb skills have earned him the recognition of his colleagues. However, at crucial moments in his life, he repeatedly gave up his own opportunities for the sake of others. After facing life's choices again, Wang Tiezhu decides to stop waiting and start over with his own two hands. After leaving his familiar post, he starts his business from a humble repair shop, not shrinking back in the face of difficulties and not giving up in the face of failure.