In a small town in a remote area, forest ranger Chen Qiang avoided an accidental electric shock accident due to a shift change with his master Lao Jin. In order to uncover the truth behind the death of forest ranger Lao Jin, Chen Qiang gradually approached Lao Wu and YeThe mafia group led by his wife also met Liu Qiang, Zhang Qiang, and others. The three of them were imprisoned multiple times for seeking the truth, but they also gained friendship and love. In the end, they cooperated with the police to destroy the mafia group