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.

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.