Zhang Dong, a veteran executive of Huarong Group, has always been hardworking and honest. However, Xu Zhaozhao, the acting president who has just returned from overseas, mistakenly accuses him of embezzlement and demotes him to a security guard. Taking advantage of the situation, the villain Zhang Qiang rises to power, greedily pocketing kickbacks and substituting inferior products until the group is plunged into crisis. Zhang Dong patiently bides his time until Chen Yaxin, the heiress of Jiahua Group, recognizes his worth and hires him at a generous salary. Eventually, Zhang Qiang's crimes are exposed, Xu Zhaozhao is filled with regret, and Zhang Dong makes a fresh start at Jiahua Group, where he also finds love with Chen Yaxin.