The birthday of twin boys, Mökö and Luru, takes the family Kiljunen to Helsinki, where their dog gets accidentally switched with the president's dog. Mökö and Luru rush to save their dog, while mother and father Kiljunen take over the city from land, sea and air.
Single father is horrified to discover his daughter inexplicably disappears when she falls asleep.
The reception for Finland's Independence Day is rudely interrupted when the presidential palace is attacked and the state leadership is taken hostage. Max Tanner of the Security Police is appointed as a negotiator in the hostage crisis, that unfolds as part of a bigger plan to undermine European security.