BOYKA is the fourth of the UNDISPUTED franchise and once again sees Scott Adkins reprising his role as the unimitable Yuri Boyka, 'most complete fighter in the world'. The plot is a little different this time around and much more character-focused as Boyka finds religion and attempts to make amends for a past transgression. The story is set outside of a prison now so the plot is more gangster themed, but don't fear, there's still a sequence of splendid ring fights that don't disappoint. Although Isaac Florentine wasn't able to come back and direct, the Russian guy they found does a top job and the action choreography is as good as ever. I found this to be the best of the series thus far, purely because it has more heart to it and the presence of a woman in the cast (gasp!) turns out to be an asset rather than a detraction. It's very similar in tone to Van Damme's excellent A.W.O.L. Adkins shows off great range as the hard-man hero and his character arc is solid. The last 30 minutes is chock-full of top action and suspense, with newcomer Martyn Ford standing out as the big bad fighter and an amazing climax to top it off.

everybody knows this film about fights.. but what makes people engage to the movie is the cause for the fights, this movie lacks the cause.. the cause they shown is utterly logic less. fighter who believes in fight must be non emotional when it comes to the person he fight with.. if he is going to enquire about the lost fighter then how come he will continue believing in fight.. that was utterly logic less... they should have thought a different cause of fight

*SPOILERS* I really don't like this film I love Scott Adkins and Undisputed 2 and 3 were the best films in my opinion. This movie to me fails haven't we see in other kickboxing movies in which a kickboxer takes another life and he mourns for it yes we did. I saw it in Bloodfist II, Desert Kickboxer and I think was also in Deadly Bet with Jeff Wincott. So Boyka kills hiss opponent by accident and he feels remorse so he wants redemption again and he find's out the wife of his opponent is in debt with local mafia in Russia and he decides to fight to set her free. Haven't I see that before the plot yes I did it was in Gladiator 1992 with James Marshall and Deadly Bet in 1991. In Gladiator James Marsahall's dad was owning a mob collectors a lot of money and Tommy (James Marshall) has to fight for money in the boxing ring to set him free. In deadly Bet Jeff Wincott is a gambler in Las Vegas after his last fight he loses his wife, respect and money and then he trains and goes against his opponent to set his wife free. So yea this movie steals ideas and scenes from this movies he stole it from Bloodfist II, Desert Kickboxer, Gladiator (1992) and Deadly Bet. That is why I don't like it cause it is not original.This movie has not the director Isaac Florentine in it from Undisputed II and III who were great absolutely amazing movies, this movie to me fails. Todor Chapkanov is the worst director and I really didn't care about Boyka and his self pitting retarded.The villains were not likable like they were in the last two movies and Scott Adkins didn't you do the same thing when you killed a kickboxer in the tournament oh yes you did in Hard Target 2 why can't you be original?!The only thing i liked in this movie is the good fighting scenes. The music score was terrible, the plot the actors everything fails flat. There was not any good music score in this movie at all like the last two good films had.This movie to me is overrated trash and it is not good in my opinion. Lionheart with Van Damme is much way better movie in my opinion than this crap! Score F 1/10 I don't care about this movie I love 2 and 3 to death I don't like this one.

And finally Scott Adkins is back in the ring. What do you expect from this kind of movies? pure fight and this movie give you that in a good way. nice fights not as strong as vol 2 and 1 but good enough. The whole series are fine and watch all of them if you not. In this one story is a bit messy and weak but does not matter, we are not seeking philosophy in such movie. The only funny thing in this movie is the English accent of actors and actress. if this is supposed to be in Russia so speak Russian, if you want to make Hollywood movie then speak English. it is funny whole thing happen in Russia in small town and every time Russians speak to each other in English with Russian accent :| anyway enjoy the movie