A young, mischievous martial arts student named Wong Fei-Hung finds himself in trouble when he challenges the wrong people and brings disgrace to his father’s school. His father decides to send him away to train under his uncle, a notoriously strict and eccentric kung fu master known for his ruthless training methods and his expertise in drunken boxing. Despite his reluctance and initial resistance, Wong starts to learn the unorthodox but highly effective techniques of the Drunken Master style of fighting. As the training progresses, he endures grueling punishment but also begins to appreciate the depth and power of the new style he’s learning.

Meanwhile, the school finds itself threatened by a formidable assassin hired to eliminate Wong's father. With his newfound skills, Wong must now stand up to protect his family’s honor and their school. He faces internal and external battles, growing both as a fighter and a person. The ultimate challenge lies in whether he can successfully incorporate the drunken boxing techniques he learned to defend what he holds dear, culminating in an intense and climactic showdown.