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.
| Writing | Eduard Uspensky | Screenplay |
| Directing | Aida Zyablikova | Director |
| Art | Gennadiy Smolyanov | Production Design |
| Camera | Leonard Kolvinkovskiy | Director of Photography |
| Sound | Nikita Bogoslovskiy | Original Music Composer |
| Sound | Vitaliy Azarovskiy | Sound Director |
| Visual Effects | Vladimir Kadukhin | Animation |
| Visual Effects | Margarita Karpinskaya | Animation |
| Visual Effects | Alla Grishko | Animation |
| Art | Elena Dymova | Assistant Production Design |
| Art | Andrey Degtyaryov | Property Master |
| Art | Yuriy Odintsov | Property Master |
| Art | Anatoliy Kuznetsov | Property Master |
| Art | Alexander Nozdrin | Property Master |
| Art | Nadezhda Lyarskaya | Property Master |
| Art | Lyubov Doronina | Property Master |
| Art | Elena Pokrovskaya | Property Master |
| Art | Aleksandra Mulyukina | Property Master |
| Editing | Galina Drobinina | Lead Editor |
| Writing | Alisa Feodoridi | Script Editor |
| Production | Elena Bobrovskaya | Production Manager |
