MS of helicopter landing on icebreaker's platform. Various shots of icebreaker "John A MacDonald" at work, ice and snow in evidence. Low level AERIAL SHOTs from helicopter of icebraker, freighters "Baie Comeau" and "Granwood" moving in single file through ice. Shots of ice from bow of icebreaker moving along, of prow cutting through ice of wake of icebreaker moving through ice, through open water. Interior shots of crewmen. HASs of ice from vantage point on icebreaker, of wake, of freighters in the distance, of deck of icebreaker looking forward and aft. Shot of crewmen in wheelhouse and on bridge, keeping eye out for possible complications. Shots of captain James Cuthbert. LAS of mast of icebreaker and of revolving radar scanner. Interior shots of office of Ice Information Centre in Halifax, of man moving counters representing ships on large wall map, of man at desk answering telephone. Very low AERIAL SHOT of icebreaker plowing through ice. Front shot of icebreaker heading for cemera, smashing through ice. AERIAL SHOTs of ice. Interior shots of helicopter during flight, of pilot taking notes, piloting. (00/03/1961)