In the summer of 1955, the Cold War heats up in Helsinki. Both the Soviet Union that the United States accelerate intelligence activities, as both are afraid Finland sliding into enemy's side in the face of presidential elections. The CIA supports Fagerholm, KGB supports Kekkonen, but who would take Finland's side?

Big money is always involved whenever there is top secret information for sale. What is going on at the Porkkala military base leased to the Soviet troops, which is only twenty kilometers away from Helsinki?

While the U.S. embassy investigates the strange death of its CIA agent and receives surprising assistance from Washington, Nyrkki decides to strike directly at the Porkkala military base, closely guarded by the Red Army.

The CIA and the KGB are furiously investigating the agent's death and Porkkala's security breach. As a member of the team, Helena follows the wife of KGB agent Sergejev and faces against Hertta Kuusinen.

President Paasikivi and Prime Minister Kekkonen will pay an official visit to Moscow. Tabe Slioor and his mannequins also travel unofficially there to present Finnish fashion to the mistresses of the Soviet elite.

Kekkonen is the center of attention at Tabe Slioor's party. Of course, Nyrkki is also there and has to witness Paasikivi's outburst.

Fagerholm's election campaign gets a sizeable remittance from the U.S, that Nyrkki gets a lead on. The struggle between the members of the CIA agents is getting harder and mistrust is growing inside Nyrkki too.

Julius is beaten and trapped, but Helena reconciles her sins with Sergejev’s gifts. Operation Baba Yaga kicks off at Christmas when Yrjö surprises Helena and Julius with his Christmas present.

The return of Porkkala and the presidential election getting closer. Will CIA agent Lisa succeed in makingJulius an ally? Helena organizes the defect of Sergejev and her children to the west.

On the eve of the presidential election, Helena and Julius confide in each other. CIA agent Lisa has decided not to leave Fagerholm's victory to a chance, but Nyrkki will stand their ground.

Kekkonen takes office and the Nyrkki buries one of its members. Helena is still searching for answers about her past. A routine gig turns into a war zone when a new enemy appears on the scene.

Helena discovers a shocking secret about her mother. Helena and Olavi are tasked with finding out who is behind the general strike while Aune and Yrjö search for their enemy.

The strike ends and Kekkonen rewards Yrjö by sending him on leave. Helena and Olavi have a fun evening together while Tabe meets a new acquaintance. Aune visits an old friend.

Nyrkki finds out that the government is about to attend a top secret meeting, and fears for the worst. Helena and Olavi resort to old tricks and Tabe saves the day.

Nyrkki is on the verge of falling apart and is questioning who it can trust. Helena takes a huge risk to save Finland and find the truth about her mother. Olavi pays a high price for his loyalty.

While Helena fights with her past and Yrjö for his life, Olavi makes a hard decicion. Aune enjoys the power she has gained and Tabe decides to turn over a new page in her life.

Helena meets her father and Tabe meets an old friend. Helena makes a deal with the devil. Olavi is on his way to hell. Nyrkki must save Finland, but is it too late?

As they fight for their country, the members of the Nyrkki learn that they must join forces once more to save themselves.