Warrior is an American action series based on a concept by Bruce Lee, and produced by his daughter. It's set in the late 19th century, during the Tong Wars, and tells the story of Ah Sahm, a martial arts prodigy, who comes to San Francisco looking for his sister. After saving another immigrant harassed by officials using his skills, he gets introduced to the most dangerous tong in Chinatown, the Hop Wei, and becomes their hatchet man.