As the new president of Finland is inaugurated, the Fist buries one of their own; Helena is still looking for answers about her past, and a routine job turns to mayhem when a new enemy arrives.
Helena learns shocking things about her mother; Kekkonen wants the strike to end, and Helena and Olavi go undercover to find out who is behind it; Aune and Yrjö search for their new enemy.
The Fist learns about a top-secret meeting between heads of states, to which they aren't invited; Helena and Olavi go undercover and Tabe crashes the party.
The Fist is falling apart as no one knows who to trust; Helena takes a major risk to save Finland and find the truth about her mother; Olavi pays a high price for his loyalty.
As Helena struggles with her past and Yrjö for his life, Olavi makes a difficult choice; Aune enjoys her newfound power; Tabe decides to turn a new leaf.
While the members of the Fist are fighting for their country, they learn that they have to join the forces one more time if they want to save each other, too.
The Fist learns that the Soviet leader Khrushchev is about to return the Porkkala to Finland, to ensure that the Prime Minister Kekkonen becomes the next president of Finland.
Tabe Slioor throws a big party to celebrate the prime minister Kekkonen and his successful trip to Moscow. The real purpose of the party is to start a new mission.