Snake catching expert Chen Zhuo's father passed away due to a lack of emergency serum, and he became determined to promote the half-hour emergency serum research and development plan. High-end residences, remote mountain villages, and train carriages successively experienced snake-induced dangers, and various snake hazard incidents occurred one after another. Behind each incident involved greed, ignorance, superstition, and conflicts of interest. Chen Zhuo tracked snake trails, deeply digging into the human-made inducing factors behind the incidents. He, Jiang Lan, and Zhong Yingzhe cooperated with each other, from handling snake dangers to cracking layers of predicaments, and finally let go of personal obsessions, promoted the establishment of a nationwide emergency rescue system, and guarded the safety of more people.