Where is the little brother?

Once after a walk, Fedya, Vasya, and Tosya discovered a large box at home. But what is in it? The mysterious package does not give the kittens peace. Besides, they have dreamed of new bicycles for so long! What if? But… this time they are in for a completely different surprise. In the box is a baby stroller for the little brother!
So in the Kotoфеev's house, there settled a true joy – the anticipation of a younger brother. And the kittens have much to learn. It's very responsible to be the older ones: Tosya plans to learn English, Fedya is training in kung fu, and Vasya wants to become the strongest and bravest.