Ah Chi (Ka-Yan Leung) is obsessed with the martial arts and, more often than not, his kung-fu clowning gets him into trouble. Ending up facing Hsia (Eddie Ko) of the notorious Jade Brotherhood is inevitable. As a result, Hsia forces Chi's martial arts master to expel him. Masterless and working for a fish vendor, Chi meets a crafty kid (Yat Lung Wong), whose uncle Chow Tung (Chin Yuet Sang) is a master of the Insane Mantis style. The Jade Brotherhood aims for control of the small town but Chi is training with a new Master and will not accept bullies in the neighbourhood.
Unfortunately the movie The Thundering Mantis is not yet available on HBO Max.
| Art | Wang Hung | Assistant Art Director |
| Camera | Chiang Je Chien | Camera Technician |
| Editing | Kuo-chuan Chiang | Editor |
| Directing | Teddy Yip Wing-Cho | Director |
| Costume & Make-Up | Chou Mei Yun | Makeup Artist |
| Editing | Wang Chiu Kuai | Editor |
| Sound | Stanley Chow Fook-Leung | Music |
| Crew | Kuang Wu | Sound Recordist |
| Lighting | Shih | Lighting Technician |
| Writing | Chang Hsin-Yi | Writer |
| Production | Stanley Chow Fook-Leung | Producer |
