The Border (season 2)

Night, the Polish-Ukranian border. The post of the guards in the Carpathian Mountains. An unexpected air strike and the watchtower is razed to the ground. No one survived except captain Wiktor Rebrow. When he regained consciousness he found he had lost not only his friends but his loved fiancee Ewa. Rebrow decided to figure out the reasons of the air strike by all means and to find the people behind this cruel murder.