After the assassination of President Park, martial law has been declared. A coup d’état bursts out by Defense Security Commander Chun Doo-gwang and a private band of officers following him. Capital Defense Commander Lee Tae-shin, an obstinate soldier who believes the military should not take political actions, fights against Chun Doo-gwang to stop him. The conflict between the two grows while military leaders are holding their decision and Defense Minister is gone. In the midst of chaos, the spring of Seoul that everyone longed for heads to unexpected direction.
You can now watch 12.12: The Day online on the following streaming providers in the United States.
| Directing | Kim Sung-soo | Director |
| Writing | Kim Sung-soo | Screenplay |
| Camera | Lee Mo-gae | Director of Photography |
| Sound | Lee Jae-jin | Original Music Composer |
| Writing | Hong Won-chan | Screenplay |
| Writing | Lee Young-jong | Screenplay |
| Writing | Hong In-pyo | Screenplay |
| Production | William Kim | Executive Producer |
| Production | Lee Yong-su | Producer |
| Production | Kim Jin-woo | Producer |
| Lighting | Lee Seong-hwan | Lighting Director |
| Editing | Kim Sang-bum | Editor |
| Art | Jang Geun-yeong | Production Design |
| Costume & Make-Up | Kwak Jung-ae | Costume Design |
| Costume & Make-Up | Son Eun-ju | Makeup & Hair |
| Costume & Make-Up | Hwang Hyo-kyun | Special Effects Makeup Artist |
| Costume & Make-Up | Lee Hee-eun | Special Effects Makeup Artist |
| Costume & Make-Up | Kwak Tae-yong | Special Effects Makeup Artist |
| Sound | Choi Tae-young | Sound Supervisor |
| Visual Effects | Cheong Jai-hoon | VFX Supervisor |
| Editing | Park Jin-young | Digital Intermediate |
| Visual Effects | Shin Dae-yong | VFX Supervisor |
| Visual Effects | Jung Do-ahn | Special Effects Supervisor |
| Visual Effects | Jo Gyeong-gyu | Special Effects Supervisor |
| Art | Eun Hee-sang | Production Design |
| Crew | Jung Youn-hyeon | Martial Arts Choreographer |
| Crew | Moon Gwang-sik | Martial Arts Choreographer |
| Production | Hong Jeong-in | Executive Producer |
| Writing | Lee Ji-min | Adaptation |
| Art | Kim Jung-gon | Set Decoration |
| Art | Park Jun-yong | Props |
| Art | You Cheong | Props |
| Sound | Cho Min-ho | Production Sound Mixer |
| Camera | No Ju-han | Still Photographer |
| Camera | Hong Jeong-won | Grip |
| Directing | Kim Min-beom | Assistant Director |
| Writing | Kim Seong-tae | Adaptation |
| Visual Effects | Jo Gyeong-hun | VFX Supervisor |
| Production | Yang Eun-jeong | Line Producer |
| Visual Effects | Im Jong-hyeok | Special Effects Supervisor |
| Art | Eom Se-yong | Props |
| Camera | Kim Byung-seo | "C" Camera Operator |
