Diehards (series)
Крепкие орешки- Production country: RU
- Creator: Vladimir Izmaylov
- Production companies: Пятый канал, 3xMedia
- Genre: Mystery
- Release date: 3/1/2021
- Release date of last episode: 4/22/2021
- Series status: Returning series
- Seasons count: 4 ( List of episodes )
- Episodes count: 32
