Barrage balloons are repaired and maintained at hangar in Cardington, Bedfordshire.
L/S interior of the former R101 centre. Various shots of balloons in the hangar. Men unpack some which have just returned from Germany. Various shots as they carry out maintenance and mend holes. M/S as they climb inside one, patch the holes and inspect the valves. M/S as they are pulled out of the hole. Camera pans up long ladder, a hose pipe is hauled up and attached to the valve. M/S as the pump is turned on. Various shots as the balloons are towed out. M/S as men go up in baskets underneath, various shots of the ground from the balloon. M/S as they communicate using flags. M/S of the balloons hovering in the air.