The Four Invincibles.

cutthroat battle for supremacy ignites within the Lung clan when its master breathes his last and one of his students uses a fiendish technique to gain control by crippling his only real rival, Hung Ching Lei (Feng Ku). Dejected, Ching Lei drowns his sorrows in alcohol till he meets a trio of disabled men, and they team up to take on their mutual nemesis.