A young, ambitious Serbian Secret Service (BIA) agent, Lazar Stanojevic is negotiating the rules of the international spy game in the modern world. His usual routine operations start to spin out of control when two high profile murders in 24 hours reinforce to him that Serbia is entering a new period of instability. As Lazar becomes involved with finding the killers, a hidden power play between the BIA, the Russians, the Germans, and the Americans gradually becomes apparent. This is a potent fuse for the ticking time bomb of Islamist terrorists, manipulative ...

While the whole country is getting ready for New Year's Eve, BIA agent Lazar Stanojevic's routine mission to compromise a German agent takes an unexpected turn. A controversial Serbian politician, Radmilovic, is assassinated in front of his eyes and things get even murkier when the BIA's Deputy Director, Karadzic, is shot by his own bodyguard. The BIA locates the bodyguard in Kosovo where they must swap him for an Albanian criminal with an unusual understanding of honor.

After a dramatic extraction from Kosovo, Karadzic's assassin is brought to Serbia where BIA Director Milojevic decides to punish him personally. The BIA saves face and shows that it should not be messed with, but unease settles in its ranks. Lazar gets orders to employ the network of his associates and start an extensive investigation into the murder of Radmilovic, as the BIA does not buy the official version presented by the police and Interpol.

Lazar's contacts in international foundations lead to a major breakthrough in the Radmilovic case. Milojevic sends Lazar to discover the connection between US agencies and the death of the controversial politician. The investigation leads Lazar to an enigmatic American official from Trump's administration, Ayatollah. Even in their first encounter, Lazar realizes that he has met with a powerful adversary. With his informer Maja's help, he attempts to get closer to Ayatollah, but as it turns out they will all be in mortal danger and blood will be shed again.

Lazar's wife, Ana, suspects him of having an affair with his informer, Milica, after finding a dedication in a book and starts her own investigation. Lazar is oblivious to Ana as his professional life is in chaos. Maja is traumatized by the previous mission and Lazar is given a near impossible task: to place Slavko- Ayatollah's main player in Serbia-under surveillance. The BIA gets a request from its American colleagues to help with the Islamic network in Sanjak and they prepare a very risky plan that Lazar's team must execute.