The story of the two Russian dogs, Belka and Strelka, who were sent to space in 1960, as they embark on an amazing space mission to become the world's most famous canine cosmonauts.
Posh, an astronaut, sets out to find his father, who is also an astronaut. He takes a spaceship to go to the moon. However, on his way, he discovers that he is not alone, as he is accompanied by his mother, a newborn alien, and a monkey. They all collaborate to find the missing father.
As a strange and destructive whirlpool emerges in the tropics of the Atlantic Ocean, it's up to astronauts Belka and Strelka, along with their friends, to save Earth.