Detectives Kolobok and Bulochkin work at the emergency room for good deeds and help the grandmother find her grandson.
Unfortunately the movie Investigation Held by Kolobki. The First Investigation is not yet available on HBO Max.
| Camera | Leonard Kolvinkovskiy | Director of Photography |
| Sound | Nikita Bogoslovskiy | Original Music Composer |
| Art | Elena Dymova | Assistant Production Design |
| Sound | Vitaliy Azarovskiy | Sound Director |
| Visual Effects | Vladimir Kadukhin | Animation |
| Art | Yuriy Odintsov | Property Master |
| Directing | Aida Zyablikova | Director |
| Art | Gennadiy Smolyanov | Production Design |
| Visual Effects | Margarita Karpinskaya | Animation |
| Visual Effects | Alla Grishko | Animation |
| Writing | Eduard Uspensky | Screenplay |
| Writing | Alisa Feodoridi | Script Editor |
| Art | Alexander Nozdrin | Property Master |
| Art | Lyubov Doronina | Property Master |
| Art | Elena Pokrovskaya | Property Master |
| Production | Elena Bobrovskaya | Production Manager |
| Art | Anatoliy Kuznetsov | Property Master |
| Art | Andrey Degtyaryov | Property Master |
| Art | Nadezhda Lyarskaya | Property Master |
| Art | Aleksandra Mulyukina | Property Master |
| Editing | Galina Drobinina | Lead Editor |
