First animation about Gena and Cheburashka. Gena the Crocodile works as a zoo animal at an urban zoo. Every evening, he returns home to his lonely apartment. Gena gets very tired of playing chess against himself and decides to find some friends to play with. Animals and people respond to advertisements that he posts all around the city. First, a girl named Galya comes with a homeless puppy, who is then followed by Cheburashka. They decide to build a house for all the lonely citizens of the city, but a mischievous old lady, Shapoklyak, tries to stop them in different ways.

Second animation about Gena and Cheburashka. Cheburashka wishes Gena the Crocodile a happy birthday and gives him a toy helicopter as a gift. After meeting some pioneers, they decide to be pioneers themselves. They build a playground for the local children and collect scrap metal, after which they become pioneers.

Gena the Crocodile and Cheburashka decide to go to the sea on vacation. Shapoklyak steals their train tickets, so they are kicked off the train. On their way home, the duo, with Shapoklyak's help, stops hikers from poaching and a factory from polluting a river.

Fourth animation about Gena and Cheburashka. Gena finds out that Cheburashka is unable to read. Luckily, the next day is September 1, the first day of school, and Gena decides to take Cheburashka to school so he can learn. After failing to buy a school uniform, they go to the school anyway, only to find it is closed for repair. Shapoklyak uses Lariska the Rat to stimulate the workers to repair the school quickly. As the school also doesn't have enough teachers, Gena and Shapoklyak volunteer to be teachers.