Kanca: Major Şahin and Captain Hasan, who fought against the Greeks in Cyprus, are captured by enemy soldiers. After enduring prolonged torture, the two soldiers are handed over to Turkey under an agreement. However, having suffered severe trauma from the torture they endured, the two soldiers struggle to continue living. Meanwhile, Major Şahin's son is killed. Şahin, taking his comrade Hasan with him, sets out to track down his son's killers.