Titles read: "ON GUARD!"
Somewhere in England.
Various shots of soldiers of the Home Defence Battalions (forerunner of the Home Guard) on guard duty at 'vulnerable points' - on a railway bridge and beside the railway line. voice over makes remark about "showing the young 'uns a thing...
Home Guard camouflage demonstration.
50 factory girls buy special uniforms so they can train in the Home Guard.
Men of the Home Guard get training in road block and ambush techniques.
Members of the Home Guard march through London.
Various shots of Hardwick Hall.
Shots of Claydon House and portraits of its former inhabitants.
Various shots of Knole House - a large and old looking Country House.
Volunteer soldiers march with rifles along country lane.