A crime-fighting cop maintains a zero-crime rate and faces job loss, so he decides to fabricate a major case, unaware that actual grave robbers are targeting a treasure-filled tomb located directly beneath his police station.

On the edge of the Gobi desert in Northwest China, Lang returns to his hometown after being released from jail. While working for the local dog patrol team to clear the town of stray dogs before the Olympic Games, he strikes up an unlikely connection with a black dog. These two lonely souls embark on a journey together.