Summer, 2006. A 5th grader Ryuhei discovers a notebook entitled "Tokyo Exploring Records." It was a journal kept by his father, Shohei, when he was around Ryuhei's age. Ryuhei forms his own exploration party with his friends Shun and Yoshio. One summer day, the party and Ryuhei's younger brother Sasuke who happens to tag along, heads to the dungeon looking for a treasure indicated on the journal
Unfortunately the movie SOS! Tokyo Metro Explorers: The Next is not yet available on HBO Max.
| Writing | Katsuhiro Otomo | Comic Book |
| Visual Effects | Hidekazu Ohara | Animation Director |
| Visual Effects | Tomonari Nakajima | Animation |
| Directing | Shinji Takagi | Director |
| Art | Junichi Taniguchi | Art Direction |
| Visual Effects | Masashi Kokubo | CGI Director |
| Editing | Takeshi Seyama | Editor |
| Writing | Sadayuki Murai | Screenplay |
| Visual Effects | Hidekazu Ohara | Character Designer |
| Visual Effects | Mitsuhiro Sato | Compositing Artist |
| Visual Effects | Takashi Hashimoto | Special Effects Supervisor |
| Crew | Katsuhiro Otomo | Creator |
| Visual Effects | Mitsunori Murata | Animation Production Assistant |
| Visual Effects | Katsuhiro Otomo | Character Designer |
| Production | Hideo Matsushita | Production Manager |
| Sound | Keiichi Momose | Sound Director |
| Visual Effects | Nagisa Abe | Color Designer |
| Sound | Yoshihiro Ike | Music |
| Visual Effects | Hiroki Yamada | Modeling |
