Summary: Army Instructional film, beginning with a description of the main types of jungle, their characteristics and the best way for soldiers to move through each. The film goes on to follow a small patrol as it travels on foot through jungle. Hand signals are used to communicate silently, and every effort made to leave no trace of the soldiers' presence. The patrol commander's thought process as he chooses a campsite is explained, and the team sets up shelters, washes in a river, disposes of leeches and cooks before taking an anti-malaria tablet each and going to sleep, leaving only sentries awake. The film emphasises that civilians living in the area should always be treated properly and courteously, particularly as they may have useful information about the area and the location of enemy units. Finally the camp is fortified with foxholes, obstacles and improvised booby traps.