In the spring of 1959, eighteen-year-old Bruce Lee returned to San Francisco, the city of his birth. Although the martial arts were widely unknown in America, Bruce encountered a robust fight culture in the Bay Area, populated with talented and trailblazing practitioners such as Lau Bun, Chinatown's aging kung fu patriarch; Wally Jay, the innovative Hawaiian jujitsu master; and James Lee, the Oakland street fighter. Regarded by some as a brash loudmouth...