After thief Alex Cardo gets caught while stealing an ancient katana in East Asia, he soon finds himself imprisoned and beaten up by the crowd there. One of the guards, Demon, feels upset by Alex appearance and tortures him as often as he gets the opportunity. Alex finds a friend and mentor in the jailhouse, Master Sun, who teaches him a superior fighting style called Iron Hand. When a 'best of the best kumite' is to take place, Demon gets an invitation. Now Master Sun and Alex need to find a way to let Alex take part in the kumite too.

Jane is a beautiful but troubled American girl backpacking through Japan, when her raw street fighting skills draw the attention of Oshima, Japanese karate champion, who recruits and trains her to fight in the vicious, all-female, underground martial arts tournament known as "The Kumite". After months of rigorous preparation, Jane is ready to face off against the deadliest female fighters in the world, including Ling, the Chinese apprentice of Oshima's nemesis. But other nefarious forces lie in the shadows, and Jane and Ling will have to unite on a journey that will take them from the gritty underworld of Hong Kong to the glitz of Macao, before deciding who really is the best female fighter on the planet.

Bloodsport III brings us back to the world of Alex Cardo. This time he must battle in a fight to end all fights - The Kumite, the most vicious warrior alive - Beast. He must not only battle for his own honor, but also avenge the death of Sun, his mentor, teacher, and spiritual "father", when Sun is spitefully killed by crime boss Duvalier. In order to defeat Beast, destroy Duvalier, and avenge Sun's death, Alex turns to Leung to whom he was indebted in Bloodsport II. Leung directs him to the great shaman, Makato "the Judge", to whom Alex must turn for guidance. The judge teaches him to fully channel the energy in his mind and body in order to rout the Beast in the Kumite...