Andrey Ganzha and Dmitry Volkov are close friends. They both came from an orphanage and then chose to serve in the army. Now lieutenants, the young men arrive in a small town called Sosny. This spot is not new to Andrey, as Colonel Reutov, who adopted him, lives here. Back in childhood, Andrey fell in love with Reutov’s daughter Polina and now hopes to marry her. However, the girl sees Andrey only as a friend. At the same time, she has feelings for Dima, and a relationship begins to develop between them. Andrey knows that his friend prefers casual, no-strings-attached romances. Which of the young men will Polina choose? How will the heroes’ fate unfold? To find out, you can watch the Series «Thresholds» online.