Just as the US has Uncle Sam for its symbol, UP employees affectionately refer to their company as ""Uncle Pete."" This film provides a fascinating snapshot of UP in the mid-1960s. First- and second-generation diesels, such as F-units and giant DD35s, run by the camera, as well as oil-fired gas turbines. Many types of special purpose freight cars are examined, including open auto racks, stock cars, and piggybacks being loaded. See locomotive repair shops, hump yard operations, early CTC dispatching, and maintenance of way equipment, as we travel the length and breadth of the Union Pacific system.