Lou and her friends run faster than airplances. They build mighty fortresses. They rescue wild animals. Lou is brave enough for everything! That is, until her friends decide to climb a tree. Lou has never climbed a tree before. She doesn't think she can do it. She likes her adventures to be down, not up! But when the excuses run out, it's time to face facts: this adventure looks like fun! If only Lou could climb trees. Is she brave enough to try?