For three years, Nick Tschiller (Til Schweiger), together with his colleague Yalcin Gümer (Fahri Yardim) and an LKA team, has been fighting relentlessly against a criminal Hamburg clan that Firat Astan (Erdal Yildiz) is leading out of prison. The clan boss has still put a bounty on Nick's head and is trying to destroy his family. That's why Nick sent his beloved daughter Lenny (Luna Schweiger) to boarding school. And he himself tries to change in order to be a reliable partner for Yalcin and a caring family man for Lenny and his ex-wife Isabella (Stefanie Stappenbeck). But this is the calm before the storm. Because Firat Astan plans the really big coup from prison, with which he wants to shake the Hanseatic city to its foundations.
When Hamburg's new interior senator, Revenbrook (Arnd Klawitter), gets wind of this, he wants to transfer the dreaded gangster to a prison in Bavaria and thus shut him down for good. Nobody suspects that Astan is the Russian contract killerLeyla (Helene Fischer) has started on Tschiller. When Nick and Isabella want to pick up their teenage daughter from their boyfriend's apartment during the long holidays, Leyla strikes. Nick and Isabella are confronted with a horror scenario: their daughter's boyfriend is dead on the bed and Lenny is crouching in the corner of the room, completely terrified. That's all Nick sees before he gets knocked out. When he regains consciousness, his wife and daughter are gone. A phone call confirms his worst fears: a Russian support team led by Firat Astan has the two women in his power.
And Astan makes an ultimatum for Nick to help him get out of prison or Lenny and Isabella will die. A race against time begins for Nick. Without the support of Yalcin Gümer and his colleagues, he goes through a purgatory of emotions, fighting for his family, fighting for Hamburg, fighting Firat Astan and his accomplice Leyla - and fighting himself...