Shots of hatches being opened on lake freighter. BOATING SHOT of laker carrying large crane, PAN to stern of camera ship, hatches visible in foreground. Various shots of ore unloaders in operations in Sandusky. BOATING SHOT of bridge as camera ship approaches. LAS of underside of bridge. LSs of industrial waterfront, multitudes of chimneys, refinery storage tanks. LSs of Montreal waterfront, ships at dock. Closer shots of harbour, freighters, docks, skyscrapers in background. CU of crate addressed to firm in Shanghai, PAN to other crates and to basin in harbour. Several shots of small canalers in Lachine Canal, in Soulanges Canal. MLS of sunken canaler, of canaler sailing between wreck and camera. Several shots of canal boats in canal, TILT UP to Lachine Rapids in background.