A once-prosperous coal mining town is now in decline, as Chinese economic policy has pivoted away from coal. Through the director’s own family, the film depicts the source of life—mined from the darkness of 800 meters underground—that has given, as well as taken away from them.
| Directing | Chen Junhua | Director |
| Writing | Chen Junhua | Writer |
| Production | Chen Junhua | Producer |
| Production | Ruby Chen | Producer |
| Production | Ben Tsiang | Producer |
| Production | Du Haibin | Producer |