What episode is the fifth exercise in?

12 episode. According to the plot of The Knockout 12 episode, Gao Qiqiang was ostensibly helping Lao Mo, but actually wanted to kill someone with a knife. During the commendation meeting, Li wanted to be arranged by An Xin to monitor those who left early outside the auditorium, and Li wanted to follow a police car that left early. Xu Jiang meets Gao Qiqiang, and Li wants to follow the police car to the abandoned factory. When he found the person who got off the bus, An Xin arranged Xiao Wu to follow him.