Joshua is a world renowned Martial Arts expert working as a Yosemite Park Ranger. He is assigned the task of finding and eliminating a Chinese gang that is killing and eviscerating Yosemite Park bears for Chinese medicine and that have killed his Ranger partner. The chase ranges from the back woods of Yosemite to the back alleys of San Francisco's Chinatown. Kidnappings, murders, gang warfare and treachery challenge Joshua's Ninja and Karate expertise as well as his mental creativity. It's one man against several gangs. Twists and turns abound as Joshua tries to solve the case and save his own hide.