At the end of the 22nd century, Alisa Seleznyova, her father Professor Seleznyov, and pilot Zeleny embark on a space expedition to find rare animals for the Moscow Zoo. Along the way, they appear to stumble upon a mysterious conspiracy led by Doctor Verkhovtsev against the legendary Two Captains, Kim and Buran. The only clue is a talking bird named Govorun, which our heroes accidentally come to possess.