When a plane crashes at sea, dolphins rescue a little boy and raise him as family. He lives a carefree life beneath the waves until an evil monster seizes power over the underwater world. The boy is banished to dry land, where a kind-hearted captain takes him in. With the captain’s help, the boy sets out on a journey to solve the mystery of his true identity.
Not many people know that every house is inhabited by finns. They are furry creatures that appear in human world to take care of a house and keep the hearth. Finnick is a young Finn, who doesn't seem to care about his responsibility of making a home out of the house. He is just making pranks on «his people» and that is the reason why none of the families wanted to stay long in his house. Everything changes when a new family comes to his house, where Finnick's tricks do not work at all, and he meets 13-year old Christine and inexplicable events begin to happen in the city. Finnick and Christine, who are so different, will have to team up and work together to solve the mystery of the events and save the city.
The film is based on the true story of Captain Marinesku and set in 1944 during WWII at the Russian Navy Base. Young and beautiful Tanka is in love with Aleksandr Marinin, the brave Captain of the Russian submarine. He is under the KGB surveillance, and his life is at risk. He takes his boat to fight the Nazi fleet, and he cannot come back home without a victory.
