This film documents battles fought against the Japanese in the Aleutian Islands: The Aleutian Islands form a chain that reaches from the territory of Alaska to Siberia and compose the southern boundary of the Bering Sea. These rocky islands of volcanic origin are located in an area of severe storms that move from west to east. The Japanese take advantage of the storm cover to move east toward the United States. In June 1942, after the Battle of Dutch Harbor in the Aleutians, a U.S. offensive toward Japanese installations on Kiska Island is launched from nearby Adak Island. In preparation for landing U.S. planes on the treeless, waterlogged tundra of Adak, a tidal flat is bulldozed and a pre-fabricated steel runway laid down in thirty-six hours. Eleven days after U.S. forces land, the runway is completed and daily bombing raids on Kiska Island begin. Engines are warmed up before dawn, and on good weather days, the first flights leave at daybreak and continue every hour until nightfall. Adak has no natural resources except water, making it necessary to ship in all supplies and equipment, but the island does boast a good harbor. On Adak, the customary military formality is relaxed, and enlisted men mingle with officers. Sometimes, planes are severely crippled or carry dead and wounded soldiers. Scenes of the dead being buried after an outdoor memorial service are shown. Photos of Kiska, taken during the flights, are studied by the generals, who then aid the senior officers in planning future operations. The determining factor in any mission is the weather. On Sunday, chaplains lead religious services, but in all other respects, Sunday is a day like any other day. If the weather is good, there are afternoon bombing runs. The bomber crew must work together as a team with respect and trust. After last-minute weather calculations, a mission begins: A bomber pilot has a heavy plane and a large crew, and the flight to Kiska takes about one and three-quarter hours. Because Kiska is heavily fortified, with many of its operations hidden underground, the main goal of the bombing missions is to harass the enemy and keep them from building up their forces. The flyers face heavy ground fire, as well as enemy aircraft. The mission depicted is a success--all the bombers return to Adak.