South African troops building defence positions in North Africa.
Title reads: "Springboks in the Field".
Various shots of South African soldiers building trenches and defence positions from sandbags. M/S of man coming out of mud hut that has been taken over by signallers as communication centre. C/U of man doing Morse code. M/S of soldiers communicating to nearby unit using heliograph mirrors.
Various shots of caravan of camels bringing supplies to South African's camp. Camels are led by African civilian men. Various shots of soldiers unloading supplies. L/S of camp on hillside in desert brush land. Various C/Us of soldiers manning their positions: we see them looking through binoculars and pointing guns through gap in sandbag defences.