Reconnaissance activities by Strategic Air Command (SAC) Lockheed U-2 aircraft during the Cuban Missile Crisis. A car is driven down towards an entrance at Offutt Air Force Base in Omaha, Nebraska. Film boxes are unloaded from the car and are loaded on a trolley by airmen. A captain accompanies the trolley being pushed towards a photo laboratory. The captain rings a bell for admittance to the laboratory. A board on the door of the laboratory proclaims it to be a restricted area. The door is opened and the trolley is pushed into the laboratory.