Unusual adventures of Karik and Vali

Ordinary children, Karik and Valya, due to their own carelessness, become tiny and get into completely unfamiliar and therefore terrible circumstances: they are surrounded by amazing plants, horrible beasts are threatened everywhere. But gradually the children will understand that in their hands the strongest weapon is knowledge. With the help of a professor of biology, they will overcome trivialities, avoid dangers, and eventually return home.