PANs of Trenton Air Base showing buildings under construction. Shot of men working on foundation of building with shovels, hauling earth away with horses and wagons. Shots of workmen lining up at large building, of men going up steps, entering building. Shot of Lynx trainer airplane, the Avro-504 on ground. CUs of time clock in hand of man. CU of smoke bomb. Shots of airplane taking off and dropping bombs, of bombs smoking on ground. Various shots of Lynx in the air, of airplane landing. Shots of airfield fire-fighters doing fire-fighting demonstration with truck, lighting and putting off fire in field. Shots showing car driving into base area, dignitaries including Governor general Earl of Bessborough and party going up steps of dais, laying cornerstone as airmen stand on parade and spectators look on. Shots of Governor general Bessborough inspecting hangars and airplanes. Shots of Governor general shaking hands after inspection and driving away in Rolls Royce car. Shot of Royal Canadian Air Force flag dipping in salute.