This movie comes right after season one and season two of the dramas with the same name and it continues the story where the season two left it. Honestly, it was better than the second drama. The action scenes were better, the music was better, and the story was more interesting. Sure, there were some action movie cliches, but overall, the choreography of the fights, the settings, even the costumes, as well as the performances, were all excellent. However, you do need to have watched the dramas to know what is going on.