Frank Tagliano (Steven Van Zandt), is a former member of the New York mob. After testifying in a trial in the United States, Tagliano is relocated to Lillehammer in Norway through the FBI's witness protection program. Frank Tagliano was intrigued by Lillehammer when he saw television images of the Winter Olympics in 1994, and therefore chooses to start his new life there. The transition from being a feared and respected gangster in New York, to become an unemployed immigrant in Norway, is not simple. Frank discovers that to get up and in the Norwegian rural society, he must resort to the old, ruthless methods.
A familiar face from the old days shows up in Norway, forcing Frank to return to his New York roots for two very different types of family reunions.
Frank needs to put a stop to Tommy with help from the Family. Torgeir decides to retire, and Jan's past is coming after him.
Frank finds out some interesting facts about the swim instructor. He illegally acquires two more crew members. Both the police and some British criminals take a special interest in the Ferrari.
Frank will be chosen as this year's enthusiast and get "Flame prize" - which opens new doors in Lillehammer districts. But there are dark clouds on the horizon when someone finds out about Frank's true identity.
Frank has to find a way to rename his twins before they are baptized. Meanwhile, Torgeir and the boys find themselves facing serious consequences after they wreck a Ferrari. Sigrid appears to have a new love interest.
A farmer's debt is paid with the deed to a reindeer herd, giving Frank a business idea; Frank meets a new love interest; Jan must flee the country.
The Brits want revenge and make several attempts to get it. Johnny is left watching the kids and decides he wants to have them start kindergarten early. The police are in the market for a new chief.
Frank and Torgeir have managed to free Roar from the Brazilian jail but, back in Lillehammer, the Lithuanian gang is causing trouble.
Torgeir and Roar uncover some unpleasant truths about their mother's fiancee. Frank approaches Tommy to give him the location of his accomplices so that they can be dealt with. Complications arise at the twins' school prompting Frank to take action. Meanwhile the sheriff and Frank seem to reach an amicable agreement. Jan encounters Randi and the consequences are severe.
Roar is in trouble in Brazil. Frank and Torgeir get involved and both the Norwegian diplomacy and the Brazilian judiciary system have a new unfamiliar force to contend with.
Frank and the PST agent travel to Oslo to visit Tommy in prison and ask for his help in recovering personal information. The new sheriff who knows the agent spots them together and it gets her attention. While Johnny is away, Jan gets caught with a lady by Randi who picks up her old habits. Torgeir and Roar wake up to a visit from their mother and her new man causing friction between the two brothers. Frank returns to The Flamingo and is somewhat surprised by the events that took place in his absence. The gang and a few new faces track down what Frank has been looking for but discover that is is not easily attainable.
An American mobster on a book tour in Scandinavia is at risk of assassination. Trouble knocks on Frank's door.
Tommy has broken away from Frank and started his own operation. In the meanwhile, Sigfrid's father is killed. Frank will need to handle both problems
The 20th anniversary of the Lillehammer Olympics is coming up. Will Torgeir get his childhood dream fullfilled?
Frank sees the value in having a mobster such as Tommy in the gang. However, Tommy is struggling to cope with Norway's high costs and goes behind Frank's back to earn a living. Roar is in trouble again in Brazil.
It's New Year's Eve in Lillehammer. Frank is getting ready to party when, through the window, he sees a young woman in distress and decides to rescue her. But soon it's Frank who needs rescue.