Several interior shots of helicopter maintenance, men removing, replacing engines. Interior HASs of hangar, several helicopters, men working at Okanagan Helicopters. Various shots of helicopters being rolled out of hangars, checked, loaded, of pilot boarding one. LAS of rotors beginning to turn. MS of helicopter taking off. Shots of men getting into helicopter in mountain country, taking off. LSs of helicopter arriving at microwave tower site, landing, of pilot coming out. Shots of helicopter taking off from snow-covered mountain, of helicopter landing on same spot. MLS of helicopter taking off from snowy mountain slope, snowy evergreens in background. MS of helicopter landing on same spot. Shots of helicopter taking off from airfield. Shots of helicopter landing sideways, spinning a few inches off ground, hooking tire held by man with tip of front runner. Shots of men having their lunches on rocky hillside, man carrying radio-telephone leaving them, sitting down some distance away and calling helicopter over radio-telephone, TILT UP to unfinished microwave tower. Shots of men around tower, in tower. MLSs of tower, men working in it.