Son Kale Hacibey is a historical action film that tells the story of a battle between the Turkish Ottoman Empire and the Ukrainian Hetmanate Empire on the one hand, and the Russian Empire on the other hand. The forces are fighting to gain control of the Hacibey Castle, an impenetrable fortress located on the Black Sea coast in the heart of Ukrainian Hetmanate Empire. And just when the Russians thought they were winning the battle against Ukrainians and Turks, a mysterious hero - a brave Ukrainian cossack warrior Andriy - arrives in Istambul to deliver a secret message from from Ukrainian Hetmanate Empire's leadership. A message that can forever change the course of this battle.

The main characters - two brothers, Mark and Yasha, are street-smart and know how to get from life all that is necessary. Mark is referred to as the noble bandit, and Yasha, on the contrary, is all about using his intelligence. Passing difficult twists and turns in their youth, the brothers begin to look for stability. Precisely in one of those days they receive the news about the inheritance. They inherit a well-known pawnshop and the owner is their uncle Felix, who doesn't want to let go of it. Mark and Yasha decide to pick up the inheritance by any means. They part ways, but they are ready for anything...