When was Gao Qiqiang's driver discovered?

The twentieth episode. Gao Qiqiang drove Chen Shuting to the appointment. Chen Tai and Cheng Cheng successively drove to the seaside pier. The anti-drug detachment set up checkpoints on the only way to check the passing vehicles carefully and let the police dogs search the trunk carefully. No abnormalities were found. Gao Qiqiang suddenly changed direction in the middle, and the driver Lu Tao had to comply. Tang Xiaohu, Gao Qisheng and others are here. Gao Qiqiang exposed Lu Tao face to face as an undercover agent sent by Cheng Cheng, and found Zhang Daqing from the trunk. Lu Tao was dumbfounded. Gao Qiqiang is a character in the criminal investigation TV series The Knockout, played by Zhang Songwen.