German troops build a fortified line in the Carpathian Mountains, Europe. A map is shown. The troops shovel the field. They take away rolls of wires. A soldier works on barbed wires. Tents on the ground. Amphibious cars are tested in a stream. Cars are driven out. The troops walk along a bridge and enter a village. A soldier watches through binoculars. Army equipment in an open field. Hungarian units move to the front while tanks and mobile guns duel in a ruined village. Tanks are fired. Explosion and smoke over a target. Ruins of buildings.
German and Hungarian troops fortify hills in the Carpathians. Map shows areas of conflict along the range. A soldier near an artillery on a hill. Soldiers digging. They put up barbed wire along the camp boundary. Tents in the camp area. Soldiers sitting on a tank. They wash military jeeps and half tracks in a stream. Soldiers in amphibious vehicles cross the stream. Soldiers cross a bridge. Tanks and military trucks on the road. A soldier looks through binoculars. Smoke due to bombardment. Russian troops and tanks advance towards the German s and Hungarians. They fire on and wreck Russian tanks. Soldiers load and fire artillery and machine guns. Soldiers in the field. The infantry advances through a burning village. Soldiers take cover.