Lotte gets a little sister named Roosi. Two scientists Karl and Viktor come to Gadgetville, they are taking part in a big folk song collecting competition. Whoever succeeds in recording the folk song of the world’s oldest animal species, wins the competition’s grand prize. Lotte and Roosi decide to help the scientists. Exciting and unexpected adventures await the sisters.

• Eesti Joonisfilm
• Rija Films
• Evelin Võigemast
• Helmi Tulev
• Mait Malmsten
• Elina Reinold
• Sepo Seeman
• Anu Lamp
• Andero Ermel
• Aita Vaher