Langfang, about 40 kilometers from Beijing, is one of the most air-polluted cities in China. But at the local environmental protection bureau, deputy chief Li and his assistant Hu are working hard to change this.
| Sound | Jeroen Goeijers | Sound Designer |
| Editing | Barbara Hin | Editor |
| Crew | Meng Han | Cinematography |
| Directing | Meng Han | Director |
| Crew | Vincent Du | Cinematography |
| Production | Vincent Du | Producer |
| Production | Richard Liang | Executive Producer |
| Sound | Jeroen Goeijers | Music |
| Writing | Meng Han | Screenplay |