This is a plot in the movie Assembly. When the Korean War broke out, Gu entered Korea with the artillery regiment. Erdou Zhao was ordered to take people to Hengcheng area to spy on the enemy's dynamics and provide command for the artillery. A group of people disguised as South Korean troops, but during the investigation, Erdou Zhao stepped on a French-made anti-infantry mine. When he was about to destroy it, several American tanks came on the road, and the Americans asked them for directions and were fooled by Gu. Later, Gu took it down. Finally, the task was completed, but Gu was injured by a mine.