The story revolves around two main characters: Thunderleg, a skilled martial artist and assassin, and Freddy, the spoiled son of a martial arts master named Wang. The story begins with Thunderleg receiving a letter from a client to kill a kung fu master named Wei, but he declines an offer from Wei to spare his life in exchange for double the payment.
Freddy, on the other hand, is a mischievous and undisciplined young man who often gets into trouble. His father, Master Wang, decides to send him to live with his brother, Master Sam, a legendary kung fu master who teaches the "drunken style" of kung fu.
Freddy is initially reluctant to train with Master Sam, but after being humiliated by Thunderleg, he decides to take his training seriously. Master Sam teaches Freddy the basics of drunken kung fu, and eventually, Freddy becomes a skilled fighter.
Meanwhile, Thunderleg receives another letter from a client, this time from a landowner named Lee, who wants him to kill Master Wang. Thunderleg accepts the task and engages in a fierce battle with Master Wang.
Just as Thunderleg is about to kill Master Wang, Freddy arrives on the scene, and with the help of his training, he defeats Thunderleg and saves his father. Master Wang is finally proud of Freddy, and the story concludes with Freddy emerging as a victorious and disciplined martial artist.
1. Thunderleg is a martial arts expert and assassin.
2. Thunderleg is known for his signature technique called the Devil's Kick.
3. Thunderleg receives a letter from a client who wants him to kill a prominent kung fu master named Wei.
4. Thunderleg refuses Wei's offer to spare his life for double the amount of money.
5. Freddy is the son of Master Wong, a martial arts master.
6. Freddy is a trainee at his father's martial arts training center.
7. Freddy is notorious for being a spoiled brat and teasing others.
8. Freddy gets into a fight with Professor Kai, a disciple of Master Wong.
9. Freddy loses the fight to Professor Kai but is impressed by Kai's skills.
10. Freddy's father, Master Wong, is visited by his brother, Master Sam, a legendary kung fu master.
11. Master Sam is known for his Drunken Kung Fu technique.
12. Freddy runs away from home to avoid training with Master Sam.
13. Freddy meets Thunderleg, who beats him up and humiliates him.
14. Freddy decides to train with Master Sam to get revenge on Thunderleg.
15. Master Sam trains Freddy in the basics of Drunken Kung Fu.
16. Freddy and Master Sam go to a local betting zone to gamble.
17. Freddy gets into a fight with a bald man who is trained in Skull Style Kung Fu.
18. Freddy defeats the bald man with the help of a hammer.
19. Master Sam teaches Freddy the more advanced techniques of Drunken Kung Fu.
20. Freddy learns about the seven masters of kung fu and their strengths and weaknesses.
21. Landowner Li wants to buy Master Wong's land to convert it into a coal mine.
22. Master Wong refuses to sell the land to Li.
23. Thunderleg receives a letter from Li to murder Master Wong.
24. Freddy's father, Master Wong, is challenged by Thunderleg to a fight.
25. Thunderleg defeats Master Wong using the Devil's Kick.
26. Freddy arrives at the scene and decides to fight Thunderleg.
27. Master Sam arrives at the battlefield but decides not to interfere in the fight.
28. Freddy defeats Thunderleg using his arm strength to snap his neck.
29. Freddy emerges as the victor and his father is finally proud of him.