There is a small price who doesn't like drinking milk at least. His Mom, the Queen is so angry with him. One day, she tells him that if he doesn't drink milk, he won't be able to go out to play.
There is no way to choose, he furtively pour his cup of milk on to the root of a tree in the garden. And suddenly, it grows into a giant tree.
He climbs up that giant tree and meets lots of giant Friso heroes. Something happens after that. But when coming back, he loves to drink milk.