Ships in seaway: LAS of bow of freighter "Trans Atlantic" in lock. MCS of rudder and screw of freighter. MS of tugboat "Wilhelmine" in canal. MLS and CU of motorship "Dommtor" moving slowly past camera. Shot of "Trans Ontario" freighter. CU of stern of Greek ship, TILT DOWN to rudder and screw splashing water. LS of stern of ship, lock workers in foreground. MLS of Victoria Bridge, freighters in the distance. MLSs of freighters passing in Saint Lawrence River, of tugboat, of freighter "Catherine Sartori" sailing by. MLS of "Trans Quebec" freighter, of laker belching smoke. Brief LAS of freighter approaching Snell Lock.