In a new documentary, we are taken back to Hong Kong's kung fu stuntmen and action filmmakers' heyday in the 1960s and '80s to learn about their anguish and triumphs. This film is a tribute to the stuntmen who have worked in kung fu movies. For stunts, "they endangered their lives," as kung fu choreographer Yuen Bin put it. In their prime, these stunt performers and choreographers were responsible for some of the most impressive and technically challenging kung fu fight sequences ever seen.