A karate expert enters a deadly underground tournament to avenge one of his students who was killed there and stop the disgraced marshal arts champion who organized this deadly competition. A karate expert enters a deadly underground tournament to avenge one of his students who was killed there and stop the disgraced marshal arts champion who organized this deadly competition. A karate expert enters a deadly underground tournament to avenge one of his students who was killed there and stop the disgraced marshal arts champion who organized this deadly competition. A karate expert enters a deadly underground tournament to avenge one of his students who was killed there and stop the disgraced marshal arts champion who organized this deadly competition.