Eye Witness No 22: Sky Sentries: AERIAL SHOT over snow covered land. AIR TO AIR SHOTs of airplane. CS of Royal Canadian Air Force navigator at work on map. Shots of Vampire Jet landing past camera on runway. Night MS of RCAF airmen of 401 Fighter Squadron of Westmount entering headquarters, LACU of sign over door. Shots of officers at work in RCAF operations room, mapping zones on table map, receiving messages through wireless. Sequence at air base showing airmen entering cockpits, engines starting, Vampire Jets taxiing on runway, taking off. Various AIR TO AIR SHOTs of three RCAF Vampire Jets airborne over town and farmland.