The story is about a family of dinosaurs from a distant galaxy who are looking for a new planet to live on because their station is too small for them. They spot Earth from a spaceship and decide to land on it and explore it. At first they don't like what they see, because it's all dirty and gray. Then they meet the children of Earth and they explain that they know how to separate the waste, which they put in the garbage cans. Comforted, little Dino's family returns to their planet with the thought of returning to Earth when it is beautiful and clean again.

The performance is performed by the educators of the Zarja Celje Kindergarten at the Library by Mišek Knjižku. Admission is free.