The opening scenes of this film recall the grim days of Dunkirk. We see Britain in that time of crisis girding herself for the siege with the organization of Civil Defence and ARP, and the formation of the Home Guard. On the industrial side, the film shows readjustments made to increase production, such as the absorption of women into war factories and the setting up of labour-management committees. In describing how these committees functioned in the coal industry, the film demonstrates the importance of total democracy in waging total war.