Interior shots of workmen trying to free jam in large ore hopper. Various CUs of car unloader tipping cars over, of operator. HAS of unloader building, pair of cars rolling down hill from building, rail yard and strings of ore cars side by side. PAN along long ore pile. CU of couplers as two cars bump, of car coming out of unloader building. Various shots of automatic car mover at work, mover moving ore cars uphill towards camera and going back. HAS of ore car being moved by mover. CS of mover coming out of well behind car, bumping it. LS of mover pushing cars into unloader building. Shot of car mover operator in his cubby hole. Shot of manually operated car mover moving away from camera.