Synopsis

Navy Instructional film, set in Hong Kong, on the threat from sabotage attacks. Areas of particular risk, such as warzones or politically unstable countries, are noted. The methods that a saboteur might use are shown, including underwater attack by divers and infiltration, disguised as a workman, for example. Sabotage weapons, such as limpet mines, are shown and possible methods of detonation are explained. Possible preventative measures and precautions are mentioned briefly.