Several children start to build a tree house but change their minds when they come across a family of birds that already lives in the tree. Building a tree house has never seemed so impossible. Maybe the instructions are too complicated, maybe it's because no one can agree or maybe everyone is just plain clumsy; whatever the reason, Didn't and his friends can't seem to get anything right. And when they finally start making progress, they're in for a colorful surprise that might change their minds about the whole project!