The world has been reduced to rubble by a massive earthquake. While no one knows for sure how far the ruins stretch, or what the cause of the earthquake may be, in the heart of Seoul there is only one apartment building left standing. It is called Hwang Gung Apartments. As time passes, outsiders start coming in to Hwang Gung Apartments trying to escape the extreme cold. Before long, the apartment residents are unable to cope with the increasing numbers. Feeling a threat to their very survival, the residents enact a special measure.
| Directing | Um Tae-hwa | Director |
| Writing | Um Tae-hwa | Screenplay |
| Camera | Cho Hyoung-rae | Director of Photography |
| Writing | Kim Dong-gyun | Original Story |
| Writing | Lee Sin-ji | Screenplay |
| Costume & Make-Up | Song Jong-hee | Makeup & Hair |
| Art | Jo Hwa-seong | Production Design |
| Visual Effects | Eun Jae-hyeon | VFX Supervisor |
| Writing | Jo Seul-yeah | Adaptation |
| Writing | Jeong Seung-o | Adaptation |
| Camera | Jung Hoon | Key Grip |
| Lighting | Lee Gil-gyu | Lighting Director |
| Sound | Kim Hyun-sang | Production Sound Mixer |
| Art | Lee Bong-woo | Set Decoration |
| Costume & Make-Up | Choi Se-yeon | Costume Design |
| Crew | Lee Gun-moon | Martial Arts Choreographer |
| Editing | Han Mi-yeon | Editor |
| Sound | Kim Suk-won | Sound Supervisor |
| Production | Choi Byeong-hwan | Executive Producer |
| Production | Byun Seung-min | Producer |
| Production | Son Suk-woo | Co-Producer |
| Production | Kim Chul-yong | Associate Producer |
| Production | Kim Bo-ra | Associate Producer |
| Editing | Park Jin-young | Colorist |
| Editing | Ryu Yeon | Digital Intermediate Producer |
| Sound | Kim Hae-won | Original Music Composer |
| Art | Lee Tae-woong | Opening Title Sequence |
| Visual Effects | Park Kyoung-soo | Special Effects Supervisor |
| Visual Effects | Kim Chang-seok | Special Effects Supervisor |
| Visual Effects | Lee Dong-ho | Special Effects Supervisor |
| Costume & Make-Up | Hwang Hyo-kyun | Special Effects Makeup Artist |
| Costume & Make-Up | Kwak Tae-yong | Special Effects Makeup Artist |
| Art | Kim Jin-seon | Props |
| Art | Kang Shin-hong | Props |
| Art | Kang Moo-seong | Set Decoration |
| Directing | Kim Jung-woo | Assistant Director |
| Camera | No Ju-han | Still Photographer |
