When a terrorist who specializes in explosives takes hold of an underground tunnel, he threatens to kill hostages if his demands are not met.
- Title: 拆彈專家 / caak daan zyun gaa
- Also Known As: shock wave tunnel
- Genre: Thriller, Crime, Drama, Action
- Run-time: 119 minutes
- Release Date: 20 Apr 2017
- Download Links: 540p | 720p
- Subtitle: Subscene Link