Jane is an American backpacker in Japan who possesses excellent street fighting skills. These skills bring her to the attention of Oshima, a Japanese karate champion, who invites her to join The Kumite, an underground, all-female martial arts tournament. Jane undergoes rigorous training under Oshima's mentorship, preparing her for months ahead of the tournament. The tournament will thrust her into the spotlight as she faces off against female fighters, including Ling, the Chinese apprentice of Oshima's nemesis. As the stakes rise and the dangers become more apparent, Jane and Ling must set aside their differences and work together to overcome the challenges thrown their way. From the gritty streets of Hong Kong to the glitz of Macao, their journey will test not only their physical abilities but also their courage and determination to prove themselves as the best female fighter in the world.