On the eve of the annual Valleby Games, the competitors are injured one by one. The clues lead Jerry and Maya to a dark secret and an old myth about the games' mascot that is said to haunt the hall. Will Jerry and Maya find the solution before anyone else gets hurt and will their friendship survive the trials?
Unfortunately the movie JerryMaya's Detective Agency – The Mascot That Disappeared is not yet available on HBO Max.
| Writing | David Wilberg | Screenplay |
| Writing | Michaela Hamilton | Screenplay |
| Writing | Martin Widmark | Characters |
| Production | Jonathan Ridings | Producer |
| Directing | Tina Mackic | Director |
| Editing | Joachim Nakagawa Stråning | Editor |
| Sound | Lisa Montan | Music |
| Writing | Helena Willis | Characters |
| Crew | Maja Dennhag | Cinematography |
| Art | Lisa Öman | Production Design |
| Sound | Gustaf Berger | Sound Designer |
| Sound | Jesper Miller | Sound Editor |
| Costume & Make-Up | Erica Spetzig | Makeup Designer |
| Costume & Make-Up | Lotta Sundberg | Makeup Artist |
| Costume & Make-Up | Hilda Junker | Costume Design |
| Costume & Make-Up | Pelle Magnestam | Costume Design |
| Art | Kristina Sandfors | Set Decoration |
| Art | Hannah Höglund | Art Direction |
| Production | Linn Staberg | Casting |
| Production | Micaela Valin | Casting |
| Production | Jon Nohrstedt | Executive Producer |
