De vader van Willi wordt ontvoerd en zal alleen vrijgelaten worden in ruil voor een duur kunstwerk uit zijn collectie. Willi trommelt de politie op, maar daar durft zijn vriend Tim niet op te vertrouwen. Hij schakelt de hulp in van Gaby en het slimme buitenbeentje Karl om de zaak samen op te lossen.
Nee, helaas is Detective Agency TKKG nog niet beschikbaar op Netflix in Nederland.
| Directing | Robert Thalheim | Director |
| Camera | Henner Besuch | Director of Photography |
| Writing | Peer Klehmet | Writer |
| Editing | Stefan Kobe | Editor |
| Production | Peer Klehmet | Producer |
| Production | Andreas Banz | Producer |
| Production | Matthias Miegel | Producer |
| Production | Dirk G. Engelhardt | Producer |
| Writing | Rolf Kalmuczak | Book |
| Writing | Robert Thalheim | Co-Writer |
| Sound | Anton Feist | Music |
| Production | Justus Riesenkampff | Producer |
| Sound | Uwe Bossenz | Music |
| Costume & Make-Up | Doreen Kindler | Makeup Artist |
| Costume & Make-Up | Sarah Raible | Costume Design |
| Costume & Make-Up | Susan Bollig | Costume Design |
| Production | Robert Thalheim | Producer |
| Art | Yasmin Khalifa | Art Direction |
| Production | Hermann Lämmel | Unit Manager |
| Costume & Make-Up | Ami Häfner | Makeup Artist |
| Sound | Milena Fessmann | Music Supervisor |
| Directing | Djémila Stiti | Continuity |
| Costume & Make-Up | Silka Lisku | Makeup Supervisor |
| Directing | Maritza Grass | Assistant Director Trainee |
| Production | Johannes Schuchardt | Unit Manager |
| Production | Suse Marquardt | Casting |
| Production | Patric Boddenberg | Unit Manager |
| Crew | Dennis Schürmann | Set Production Assistant |
| Art | Myrna Drews | Production Design |
| Art | Marion Gerhardt | Location Scout |
| Crew | Anne Urban | Post Production Supervisor |
| Directing | Karo Schnelle | Second Assistant Director |
| Costume & Make-Up | Anne Wenzel | Makeup Artist |
| Production | Valeska Bochow | Production Manager |
| Directing | Claudia Beewen | First Assistant Director |
| Sound | Jacek Wiśniewski | Foley Artist |
