Slow BOATING SHOTs from icebreaker "Ernest Lapointe", of ice breaking up in front of ship, of ship's wake, of icebreakers "Saurel" and "Montcalm". MLS of the "Montcalm". Shots of ice floes as camera ship sails by, cuts through, Jacques Cartier Bridge in the distance, ice floes in foreground. Various shots of various parts of the "Lapointe", of the forecastle as ship ploughs through ice, of crew at work. Shots of ice breaking as icebreaker goes through, of ice cracking alongside ship, breaking up. Shots straight down along bow of bow wave, of bow cutting through ice. MLS of the "Montcalm" charging pack ice, pulling back and ramming again and again. Shot of Saint-Lambert Lock, of the "Ernest Lapointe" entering lock in background. Shots of frozen over lock as seen from icebreaker heading towads lock, of icebreaker inside lock, breaking its way through, of ice alongside ship. Interior shot of pilot steering ship. (00/04/1960)