Model factory buildings are camouflaged by special artists in a London studio.
Titles read: "CAMOUFLAGE!"
Various shots show a camouflage artist making a model of an armament (?) factory, then working to camouflage it from air raiders. The roofs of the building are painted so that they blend in with the countryside. The model, mounted on a circular board, is checked through viewfinders and under different kinds of light.
Two aerial photographs show the buildings before and after camouflaging - they are almost invisible!