The Big Boss (or Fists of Fury) is a 1971 Hong Kong martial arts action film written and directed by Lo Wei, with assistance from Bruce Lee. It stars Lee, Maria Yi, James Tien and Tony Liu. Bruce Lee's first major film, it was written for James Tien. However, Lee's strong performance overshadowed Tien, already a star in Hong Kong, and made Bruce Lee famous across Asia. Cheng Chao-an is a Chinese man from mainland China who moves to Thailand to live with his cousins and works in an ice factory. When a block of ice is accidentally broken, a bag of white powder falls out. Two of Cheng's cousins are asked to see the manager. The factory is really a front for a drug smuggling ring led by Hsiao Mi, also known as the Big Boss.