Aleksey Gladkiy

Little heroes Yura and Katya, thanks to a magical gift from Yura's grandmother, find themselves in an extraordinary land of knowledge where there are no boundaries. In this land, you can travel anywhere and learn a lot. The children decide to learn about the oceans. Together with their all-knowing assistant, the heroes set off on a journey across four oceans: the Pacific, Atlantic, Indian, and North.

Yura had a bad day on his birthday: he got a bad grade. And the adults around him were saying some strange things: “You’re driving me crazy! Stop being lazy! Get this into your head!” Yura and his friend Katya are trying to figure out where these mysterious expressions, called phraseological units, come from.