Four years after Inger Johanne Vik lived her life in Washington, working for the FBI, we find out the reasons she came back to Sweden. But will it stay in the past? Helen Tyler, the president of the United States comes for a state visit and unpredictical events happen.

The Swedish police deployed all the resources in the search for the US president. Inger Johanne realizes that her past is catching her when it becomes clear that Ingvar becomes the Swedish contact for Warren Schifford who was her FBI mentor.

Inger Johanne is forced to steer herself to work with Warren. The differences in culture of the Swedish police and the FBI is becoming more and more evident when the search for the president finds the dead body of bodyguard Hunter Russell.

Invar suggests he and Inger team up to track down the mole in the Swedish police force, but Warren Schifford does his best to frustrate their efforts. As evidence begins to mount, possible leads emerge in relation to President Helen Tyler's disappearance, but Schifford insists everything points to the work of a single individual.

Swedish police search for a mole within their own ranks, while Inger Johanne leaves Ingvar behind and goes looking for the US president on her own. Ingvar pays Warren a visit and some theories start to emerge about who might be behind the president's disappearance.

Inger Johanne wants to get help to the captive president but is surprised to discover the president doesn't trust anyone in her own ranks. Rifts develop within the FBI as conflicting stories emerge about who might be behind the kidnapping. Ingvar pays a visit to someone who will turn out to be a key figure in the investigation and to have links to Helen Tyler's past.

Someone is tracking the signal from the missing US president's mobile phone. Meanwhile, both the president and Inger Johanne are haunted by ghosts from their past. Ingvar and Warren form an unlikely partnership to try and push forward with the investigation.

A hitman is after the missing US president, who remains in hiding with Inger Johanne and Hedvig. Will they be rescued in time? And who has been the real mastermind behind the president's disappearance?