CU of the metal gear mechanism at the St. Lambert locks. TILT UP along the chain that activates the mechanism. MLS of the mechanical structure; a ship crosses the screen; a crew member and a Canadian flag are seen. LAMLSs of metal structure thrusting into the blue sky (beauty shots). MLS of a cargo ship. CS of the ship's hull; TILT UP to a MS of crew members and the structure of the locks. CS of a gear mechanism, TILT DOWN following the movement of the mechanism; backlit LAMLS of a freight train rolling on the structure.