Enter the Game of Death

A high-octane kung fu action film built around escalating combat sequences as a lone fighter battles multiple opponents to retrieve a contested document in a tower.

It's approaching World War 2 and China is expecting to be invaded by Germany and Japan. Mr Ang is hired by a Chinese group who are after a "secret document." Many other groups want to get their hands on it as well. It's on the top floor of a tower and Ang must fight his way to the top.