One day a whale came out of the sea. Or rather, Kitessa. Once upon a time, Murochka saved Murzik's ship's kitten from the clutches of the ship's rats, which they threw overboard. Kitessa thought that the wet kitten looked like a baby whale. And now Murochka doesn't know if she's a cat or a Murzik kitten. To find out who she really is and find Murzik, Murochka goes to the city of Mur-Murmansk, but loses her way and ends up in the city of Nakhodochka. On the shore, Kitessa meets the Dai-Dai seagull, who considers herself a relative of Chinese Tea. Dai-Dai helps Murochka make a scooter, and on it the friends go to the port to look for Murzik. For Murochka, this is not just a walk around the city, but an exciting journey filled with new discoveries, because Kitessa came to land for the first time. A story about friendship - Murochka was looking for herself, but she found friends. That's the main thing! After all, sometimes even a large whale can be very lonely in a huge ocean with many waves.