Yuuta Hibiki wakes up in the room of Rikka Takarada and notices two things: he has no memories, and he can hear a mysterious voice calling his name from a nearby room. On further inspection, he finds a robot—which introduces itself as Hyper Agent Gridman—behind the screen of an old computer. Much to Yuuta's surprise, Rikka cannot hear Gridman, nor can she see the ominous monsters looming over a thick fog as it envelopes the town outside. Another giant monster materializes in the city and proceeds to wreak havoc. Amidst the confusion, Yuuta is once again drawn to the old computer and merges with Gridman. Suddenly, he appears in the middle of the battle and is forced to fight the monster. Together with Rikka and fellow classmate Shou Utsumi, Yuuta forms the "Gridman Alliance" to defeat the monsters plaguing the city and find whoever is responsible for their emergence.
Unfortunately the movie SSSS.GRIDMAN Movie is not yet available on HBO Max.
| Directing | Yoshiyuki Kaneko | Director |
| Directing | Akira Amemiya | Director |
| Visual Effects | Hitoki Takeda | Color Designer |
| Visual Effects | Masayuki Gotou | Mechanical Designer |
| Visual Effects | Shinichi Miyakaze | CGI Director |
| Visual Effects | Hiroki Mutaguchi | Animation Director |
| Visual Effects | Tsuyoshi Nonaka | Mechanical Designer |
| Sound | Masayoshi Oishi | Theme Song Performance |
| Sound | Tom-H@ck | Theme Song Performance |
| Sound | Maaya Uchida | Theme Song Performance |
| Writing | Keiichi Hasegawa | Writer |
| Production | Shunsuke Shida | Producer |
| Sound | Shiro Sagisu | Original Music Composer |
| Sound | Eiko Morikawa | Sound Effects |
| Sound | Toshiki Kameyama | Sound Director |
| Visual Effects | Koji Ichikawa | 3D Director |
| Editing | Masato Yoshitake | Editor |
| Camera | Katsunori Shiradoh | Director of Photography |
| Art | Taketo Gonpei | Art Direction |
| Visual Effects | Shinji Nishikawa | Creature Design |
| Visual Effects | Osamu Yamaguchi | Creature Design |
| Visual Effects | Hiroshi Maruyama | Creature Design |
| Visual Effects | Ichiro Itano | Creature Design |
| Visual Effects | Mahiro Maeda | Creature Design |
| Visual Effects | Mayumi Nakamura | Character Designer |
