As a child, Fong Lin I’s (Li Li-Li) parents were murdered by a ruthless gang called the “Four Outlaws”. Fong Lin I is taken in by a monk at Shaolin and taught the crane technique to become known as the "one legged-crane". After finalizing her crane technique, she goes out to avenge the death of parents with the help of undercover police captain (Sze Ma Lung) and her long lost brother (Wei Tze Yung).