Ancient Korea, 17th century. The powerful Khan of the Jurchen tribe of Manchuria, who fights the Ming dinasty to gain China, becomes the first ruler of the Qing dinasty and demands from King In-jo of Joseon to bow before him; but he refuses, being loyal to the Mings. On December 14th, 1636, the Qing horde invades Joseon, so King In-jo and his court shelter in the mountain fortress of Namhan and prepare to defend the kingdom.
Unfortunately the movie The Fortress is not yet available on HBO Max.
| Visual Effects | Jung Do-ahn | Special Effects Supervisor |
| Crew | Jeong Bong-jae | Stunts |
| Crew | Yang Hae-gil | Stunts |
| Camera | No Ju-han | Still Photographer |
| Crew | Lim Hyo-woo | Stunts |
| Crew | Yun Min-gyu | Stunts |
| Visual Effects | Cheong Jai-hoon | VFX Supervisor |
| Art | Seo Joo-yeon | Art Direction |
| Directing | Park Sin-woong | Assistant Director |
| Production | Kwon Mi-kyung | Producer |
| Camera | Kim Sung-jin | Camera Operator |
| Crew | Lim Seung-mook | Stunts |
| Visual Effects | Huh Dong-hyuck | VFX Supervisor |
| Sound | Park Hyun-soo | Production Sound Mixer |
| Costume & Make-Up | Yoon Hwang-jik | Special Effects Makeup Artist |
| Writing | Lim Sun-ae | Storyboard |
| Visual Effects | Kim Shin-chul | VFX Supervisor |
| Directing | Hwang Dong-hyuk | Director |
| Camera | Cho Gi-hun | Key Grip |
| Visual Effects | Son Seung-hyeon | VFX Supervisor |
| Art | Lee Sang-hun | Props |
| Production | Cha Hyun-woo | Co-Executive Producer |
| Writing | Hwang Dong-hyuk | Screenplay |
| Art | Kim Eun-ji | Art Direction |
| Crew | Park Gab-jin | Stunts |
| Camera | Jeon Young-wook | Still Photographer |
| Camera | Kim Ji-yong | Director of Photography |
| Sound | Choi Tae-young | Sound Supervisor |
| Costume & Make-Up | Cho Sang-kyung | Costume Design |
| Production | Na Kyeong-chan | Co-Producer |
| Production | Han Heung-seok | Producer |
| Art | Chae Kyoung-sun | Production Design |
| Editing | Nam Na-young | Editor |
| Sound | Gang Hye-yeong | Sound Designer |
| Writing | Song Hae-sung | Adaptation |
| Production | Jeong Tae-sung | Executive Producer |
| Costume & Make-Up | Cho Tae-hee | Makeup & Hair |
| Writing | Kim Hae-gon | Adaptation |
| Sound | Ryuichi Sakamoto | Original Music Composer |
| Art | You Cheong | Props |
| Production | Park Ji-sung | Producer |
| Lighting | Cho Gyu-young | Gaffer |
| Writing | Kim Hoon | Novel |
| Production | Kim Ji-yeon | Producer |
| Production | Simon Lee | Producer |
| Editing | Kevin Kang | Digital Intermediate |
| Editing | Jung Ji-eun | Assistant Editor |
| Sound | Kim Byung-in | ADR Recordist |
| Visual Effects | Jung Hwang-soo | VFX Supervisor |
| Crew | Heo Myeong-haeng | Fight Choreographer |
| Art | Kim Jung-gon | Set Dresser |
| Crew | Choi Choon-beom | Stunts |
