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.

Hugo Koivulehto
as Mökö

Nino Kröger
as Luru

Mimosa Willamo
as Mother Kiljunen

Ylermi Rajamaa
as Father Kiljunen

Tommi Korpela
as Adjutantti Korhonen

Lauri Tilkanen
as Konstaapeli Piippo

Elena Leeve
as Poliisipäällikkö Rimminen

Kati Outinen
as Rikostutkija Schultz

Amira Khalifa
as Rouva presidentti

Ernest Lawson
as Promohenkilö Partanen