The Deadly Duo

The Deadly Duo is a 1971 Hong Kong action-drama film set in 12th-century China during the Song dynasty, where patriots led by Ti Lung Bao Ting Tien, recruit David Chiang Da-Wei as Little Bat, a mysterious and superhuman fighter, to rescue a kidnapped prince from the invading Jin Empire. The film follows their perilous journey across a treacherous bridge to infiltrate an impregnable fortress and locate the imprisoned prince. Along the way, they are aided by the qinggong expert Bian Fu, played by Chan Sing Jin Emperor, who ultimately betrays them due to his allegiance with the Jin Empire.