Air ambulance: interior shots of cockpit of light plane showing dash, pilot, and occasionally, AERIAL SHOTs of ground below. Interior shots of nurse in back of plane, holding plasma bottle aloft, of her hand holding oxygen mask on patient's face. CU and MS of mechanic replacing engine cowling around aircraft engine. Rear shot of attendants placing stretcher in ambulance, closing doors, "Oslen's Ambulance" written on doors. CU of wall telephone.