The relationship between Katya and her mother cannot be called simple anyway, but here, in the midst of the working day, Katya learns that her mother never flew with her friend to the resort, disappearing from the airport in an unknown direction. Having learned from the doctor the real reason for her mother's strange behavior, Katya not only reunites with her, but also reveals a lot of new things about her mother and herself.
In the center of the story are three main characters - Lieutenant Colonel Soshnikov, Captain Muravyov and Major Zakharov. Three ages, three different characters, three different destinies, which are destined to meet at the Khmeimim military base.