The series tells about the life of the business center "Nightingale", in which the private security company "Kedr" works. Lev Borisovich, the head of the PSC, is, as he himself believes, not only a guardian of material, but also moral and ethical values. In his subordination are four guards - Fedya, Tolya, Slava and newcomer Andrey. Andrey dreams of becoming a rock star, so he does not value the work of a security guard, but on the very first working day he meets Snezhana, a spa worker, and slowly gets drawn into the workplace of the business center. It is not an action movie with Jason Statham, it's just a story about a couple of days from the humble life of the guards of the Nightingale business center.

Vasily Pronchishchev and Vasily Chelyuskin were young lieutenants of the Russia fleet, who set out from Yakutsk along the Lena River to the Arctic Ocean on a sailing ship under the leadership of the commander Vitus Bering in the summer of 1735. Contrary to the imperial prohibition, incredible trials and deadly danger lying ahead of all the members of this expedition, a young girl enamored with one of the characters got onto this ship. However, neither storms or severe northern frosts and hunger were able to stop them, since fulfilling of their duty, reaching of the most northeastern point of Eurasia and putting of the vast Arctic territories on the world maps were their main purpose in life.