Varastettu ilmalaiva

It is the year 1891. Five boys leave by mistake from the Prague Jubilee Exhibition in the airship of entrepreneur Findeys. After their departure, Findeys claims that the boys stole the airship along with the patent for producing a non-flammable gas of immense significance especially for the army. The boys are therefore accused of high treason and felony in absentio. They, however, do not have any idea about this and have to make a compulsory landing on an island, finding shelter in the cave of Captain Nemo. One of the boys, Jakoubek, writes a letter about their rescue and throws it in a bottle to the sea. His message gets to the hands of military functionaries who consider it a coded report. The place of the boys' landing is discovered by Marek, a smart journalist, who immediately organizes a rescue expedition. In the meantime, the boys manage to repair the airship and Jakoubek takes off for an experimental flight. A ship lands on the island shores, bearing the wealthy gentleman Tenfield and his niece Katka on board. The boys help them to defeat the pirates who are among the members of the ship's crew. Jakoubek brings over the rescue expedition and the group of five curious and brave boys victoriously returns home. (jakelijan virallinen teksti)