MSs of freight trains passing Prairie elevators. LS of train passing a Prairie elevator, field of ripe wheat in foreground. LSs of fields of ripe wheat, grain elevators in background. HALSs of freight marshalling yards at Winnipeg. Various shots of wheat trains backing into elevator. Shot of elevators at Lakehead. Numerous interior shots of grain being dumped from freight cars. MSs of grain flowing along on conveyor belt.