The bandits discovered the People's Liberation Army and quickly tried to gather information. At this time, the small team also found that the railway workers had been killed, and they dispatched soldiers to report back to the military sub-district while setting up defenses. Ma Chen and the group led by Lao Gui secretly observed the situation. To prevent the PLA from calling in reinforcements, Lao Gui ambushed several bandits in Baigou Gully. During the ambush, Xing Ge, after killing several bandits, died honorably. Only Lao Gui and Yang Heizi among the bandits survived. Late at night, Ma Chen led the bandits to launch a surprise attack on the small team, which was met with a fierce counterattack by the small team that was well prepared, causing heavy losses to the bandits. On the road, Lao Gui encountered soldier Xiao Feng, and in his attempt to escape, he shot Yang Heizi. Yang Heizi's sister, Yang Chunhua, wanted to avenge her brother and, with explosives strapped to her waist, disguised herself as a pregnant woman to approach the small team. The squad leader saw through her disguise and quickly subdued her. In order to track down the bandit hideout, the squad leader decided to let Yang Chunhua go. Zhang Junyao and squad leader Zhang Fan followed Yang Chunhua but were ambushed along the way. After a fierce battle, the bandits were repelled, but the soldier Yao Bing, who stayed behind, was captured by the bandits. Zhang Junyao and Zhang Fan went to look for the bandits again, and during an encounter battle, Zhang Fan sacrificed himself. Yang Chunhua, having received kind treatment from the PLA and care from Yao Bing, asked Ma Chen for leniency and eventually freed Yao Bing. While helping the seriously injured Yao Bing, Yang Chunhua encountered Lao Gui. Lao Gui shot and killed Yao Bing, and Yang Chunhua was wounded and fell off a cliff. Zhang Junyao and Xiao Feng found the barely alive Yang Chunhua, and she revealed the location of the bandit hideout to Zhang Junyao. Zhang Junyao and Xiao Feng resolved to blow up the bandit hideout. On the way, they found Yao Bing, who was gravely injured but still alive. After a fierce battle, the bandits were completely annihilated, and the hideout was destroyed. Amid the smoke of battle, Zhang Junyao and Xiao Feng supported Yao Bing as they walked toward the desert.