This is a story about the mountain rescue detachment of Karelia. Members of the search and rescue group "42-21" are well known among colleagues as high-class professionals. Each of their assignment happens to become a unique operation and a story to be told to the beginners around campfire. This team is legendary.
At any assignment our heroes manage to find a non-standard way out, sometimes close to insanity or joke.
The routine of the group "42-21" gets broken by the arrival of the young specialist Alexander Grek. During ten episodes we will see how this "golden boy" will become a real man and a great professional.