I read some reviews that say this is a bad movie, but good for Scott Adkins fans. I tend to disagree. The good thing about this movie is that the director and Adkins try something different, but end up making the same movie over and over. Adkins shows that he doesn't evolve as an actor. And as a martial artist, he reached his peak way before this one. It's easy to say that this movie offers more than Ninja 1 and 2, but at the same time it offers less than anything Adkins should offer.
Adkins works better as a co-part in a mainstream movie, because as a lead actor in B-movies, he is done and is going the same way Seagal, Van Damme and others are, who make too many (of the same) movies.
Adkins, you can do better, and less is more.