M/S as a balloon floats upwards, M/S of a row of barrage balloons. A woman checks her suspender belt. M/S of ladies in diaphanous dresses, looks like the same girl superimposed. M/S of Ivor the imp in a test tube, he floats to the top. Diagrams show how gravity affects ice and tin....
Barrage balloons are tested at Camp Davis Barrage Balloon School.
Barrage balloons are inflated and tested near the Tower of London.
Balloon barrages to defend British cities are made in a large hangar in Godalming, Surrey.
Barrage balloons are used to protect Dover Harbour and the ships in it.
Parachute drops from barrage balloon in Oxfordshire.
Scotland's famous Forth Bridge is seen with barrage balloons floating above it.
Material showing convoy of merchant ships.
Material showing depth charging, naval fleet, and aircraft.