Men work to free ships from the ice in a sudden freeze-up in the Lachine Canal, Canada.
Titles read: "CANADA - SHIPS RACE FREEZE-UP".
General view of ships trapped in the Lachine Canal, in foreground men working to free frozen lock gates. Pan, ship trapped in the ice. Pan from ice to crew looking over stern of ship. Pan, men on board ship chipping away at ice on the sides of the canal. C/U man chipping ice.
General view men working to free frozen lock gate. Pan, from frozen gates to men on top chipping at ice with poles. C/U spiked poles chipping at the ice and steam jets being used to clear the gates.
L/S ships starting to move slowly through open lock gates as men on the canal side prod away at the ice. Men prodding the loose ice. L/S ship coming towards camera. Top shot looking down from ship as bows cut through the loose ice. L/S ship moving away.
Top shot man at partially opened lock gate pushing loose chunks of ice out into the water to help free the congested lock. General view of ship moving towards railway lift bridges as it comes into Montreal Harbour. Captain. General view of ships unloading in harbour area.
Note: National Film Board release on file.