Shots of maintenance crews working on helicopter, helicopter on deck of icebraker CCGS John A. Macdonald, readying for take off, landing on deck. LAS of ships, radar antenna rotating. Shot of radar scanner and men reading radar scanner in radar room. Shot of interior of ship with crewmen on bridge, at wheel, man looking for icebergs with field glasses. Shot of wireless operator receiving and sending. CS of head with earphones, hands typing messages, hands operating key. Various shots of cartographer at work on chart. Shot of engineer at work in ship's engine room. CS of loud speaker on ship's PA system. MCS of geologists preparing core sampling bomb to drop to the seabed. Various shots from different angles of anchor being hauled aboard winch.