Beating and then punching the instructor is the thirteenth episode. In the deep mountains and forests, the combat troops are planning an ambush in an orderly way. An unknown plane flew over areas 3 and 5 where the military region was stationed. In the command camp, Ouyang Rushan, the brigade commander of the mountain brigade, asked the instructor if he knew the model of the unidentified aircraft. According to the data captured by the radar, the instructor thought it was a small plane, and he guessed that it might be sent by the blue side of the ice and fire 20 15 military exercise. Ouyang Rushan thought it was unlikely, because there was still half a year before the exercise, but he told the instructor to closely monitor the movements of the blue side.