Yay, it's Bear's birthday! Well, it might be a "hooray" for someone and may not be for someone else: the only thing Bear himself dreams of is that the day will be a relaxing one. But can his wish come true, when one of the guests is a restless Masha?

Bear needs to step away for a while, leaving Masha, Panda, and Penguin alone at home. It seems to be a simple situation - something all adults can understand. But which of the children will be in charge?