Two circus performers and martial artists are sent to deliver a trunk full of gold to a town experiencing famine and a siege of marauders. The marauders, of course, are waiting for them around every corner and they are besieged at each step. As much time is taken up with very entertaining and fast paced fight scenes as plot exposition. The writer also added elements of romantic tension and some vaguely historical political references to lend the film a little more interest and complexity than the genre norm. The romantic element is never tedious and gives the characters more depth than those of more typical martial arts action films.
The paragraph above describes about half the plot. To avoid a spoiler I can not say anything about the remainder of the film.
All considered, Bu Bu Zhui Zong (or Chase Step by Step) is a fairly enjoyable action film with an attractive and reasonably talented cast. The story moves quickly in order to avoid the boredom its core simplicity would have normally engendered, but remains easy to follow. The English language version is better dubbed than average and the dialog is above generally genre standards while the cinematography is pretty average.
Recommended for martial arts fans