Hedgehog Milan has just woken up from a long winter sleep and peeked out of his burrow—yes, he has overslept again. Outside, the sun is shining, leaves are lush on the branches, and fragrant flowers are sprouting from the ground. Nature is in full bloom, the air smells of summer, yet inside he feels only grey gloom and dark grumpiness.

Luckily, his friend Squirrel Vlasta lives nearby. How can bad mood be turned into good mood? That will be the task this time for her and for all the small and big visitors.