Various shots of crewmen walking on ice in the Canadian Arctic. MSs with ZOOMS back of men coming down ladder from foredeck of the Canadian icebreaker John A. Macdonald onto ice surrounding ship. MCU of auger sinking into ice. ZOOM OUT to include crewmen at work, drilling hole in ice, preparing blasting charges. LS of same, icebreaker. LS of group of men on ice ridge.