Gena the Crocodile works as a crocodile in an urban zoo. Every evening he returns home to his lonely flat. Gena gets very tired of playing chess against himself and decides to find himself some friends. Animals and people respond to his advertisements that he posts throughout the city. First comes a girl named Galya with a homeless puppy, then followed by her, Cheburashka.

Crocodile Gena's birthday. He congratulates Cheburashka and gives him a gift. More friends have been busy trying to build a playground and help the scouts to collect scrap metal.

Crocodile Gena and Cheburashka decide to go to the sea. Shapoklyak steals their train tickets, and so they have to leave train.