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.
| Art | Junichi Taniguchi | Art Direction |
| Visual Effects | Hidekazu Ohara | Animation Director |
| Crew | Katsuhiro Otomo | Creator |
| Visual Effects | Hiroki Yamada | Modeling |
| Visual Effects | Takashi Hashimoto | Special Effects Supervisor |
| Visual Effects | Hidekazu Ohara | Character Designer |
| Sound | Yoshihiro Ike | Music |
| Sound | Keiichi Momose | Sound Director |
| Visual Effects | Mitsuhiro Sato | Compositing Artist |
| Directing | Shinji Takagi | Director |
| Visual Effects | Masashi Kokubo | CGI Director |
| Production | Hideo Matsushita | Production Manager |
| Visual Effects | Katsuhiro Otomo | Character Designer |
| Visual Effects | Tomonari Nakajima | Animation |
| Writing | Sadayuki Murai | Screenplay |
| Visual Effects | Nagisa Abe | Color Designer |
| Editing | Takeshi Seyama | Editor |
| Visual Effects | Mitsunori Murata | Animation Production Assistant |
