BKFC: KnuckleMania V

Three middle aged men polish their martial arts skills to avenge their fallen master.

Two brothers compete in the world's deadliest underground fighting tournament, where they must decide whether to play by the rules or to cast their honor aside and team up to bring down the dark syndicate running the tournament.

Martial arts fighter Joe goes to prison for four years and takes his wife's blame for a drug bust. After his release, he learns that his son needs expensive surgery because of a life-threatening tumor. Joe's only chance to save him: a brutal all-styles tournament with a $100,000 prize.

Philo takes part in a bare knuckle fight – as he does – to make more money than he can earn from his car repair business. He decides to retire, but when the Mafia come along and arrange another fight, he's pushed into it. A motorcycle gang and an orangutan called Clyde all add to the 'fun'.

Nick and Ruben are hoodwinked into a "shootfighter" (no-holds-barred, to the death) martial arts match by the evil Mr. Lee, who has a grudge against world shootfighter champ(and teacher of Nick and Ruben) Shingo.