One is a valiant police officer who lost his arm, the other a ruthless bandit who kills without hesitation and plunders without fear. Fate has decreed that they will chase each other, and the one-armed policeman and the ruthless bandit kingpin will engage in a series of thrilling and brutal life-or-death battles, from the Inner Mongolian grasslands to a remote city in the border region, and then to the China-Mongolia train.