A colour training film, made for the West Sussex Home Guard during the Second World War, shows the wrong and the right way to capture any Nazi spies who may be encountered on home territory.

This training film, made for the West Sussex Home Guard, shows the wrong and the right way of dealing with Nazi spies. Two Home Guard men, still wearing LDV armbands, are approached by a man, who pulls a gun on them. In the second version, the Home Guard are better prepared and arrest the spy. Next a car approaches a checkpoint and again a concealed spy shoots at the sentries. In the second version the driver is ordered out of the car and the spy is found and arrested.