She knows a lot of things like a cow knows the stars, she is clumsy and often something does not go her way. Despite this, curiosity about the world does not leave Mama Mu even for a moment - otherwise it would be very boring. However, she has to put her plans of being a singer and actress aside for now, because the beloved teddy bear of little Lina's brother has disappeared somewhere. Mama Mu, together with her friend, Mr. Crow, get off her feet and starts investigating the farm. There is little time, the teddy bear changes hands and gets lost even under water, but for the resolute cow this is just an additional motivation to act. If someone is going on a trip, it's time for him!