Sub-Zero Warfare Canada-U.S. Hold Joint Maneuvers. A giant exercise to train combat troops in arctic warfare gets underway in Alaska. Alaskan Command paratroopers with units from other strategic Army and Air Force units join with Princess Pat Infantry, Canada's crack regiment in successfully battling Old Man Winter - the second enemy. Plane taking off from a snow packed runway. MS - Inside the fuselage sitting on the floor are Alaskan Command Paratroopers. CUS - Behind the pilot of the plane. Plane to ground - Mountain terrain. CUS - The Princess Pat Infantry. Air to Air: Alaskan Command and Princess Pat Infantry jumping from the plane. Ground to air - The air-born planes and a line of paratroopers floating down. LS - The paratroopers landing in snowy surroundings. MCUS - Camp site with falling snow, tanks covered with snow. MS - Small tanks moving down a snow covered road with a soldier half way out the open hatch. MS to MLS - US Helicopter lifting off with something hanging from a cable. MS - F-100 Super Saber Jets taking off from run-way. Air to Air - You see the pilot flying the jet sitting in the cock-pit. MLS - Super Saber Jets flying in formation.