At the end of the 22nd century Alisa Seleznyova, her father Professor Seleznyov and pilot Zeleny go on a space expedition to find rare animals for Moscow Zoo.

The Mystery of the Third Planet (Russian: Тайна третьей планеты, Tayna tretyey planety), aka The Secret of the Third Planet is a 1981 Soviet traditionally animated feature film directed by Roman Kachanov and produced by the Soyuzmultfilm studio in Moscow. It is based on a children’s science fiction novella “Alice’s Travel” by Kir Bulychov, from Alisa (Alice) Selezneva book series.
The movie is considered a cult classic in Russia, a diafilm and a number of video games were based on The Mystery of the Third Planet, and spiritual successor film Alice’s Birthday was released in 2009.






