"When Ruby's teacher tells the class about Henry David Thoreau and how he left the busy modern world and went to live in the woods for over two years, Ruby wants to be just like him. She convinces her parents to take her and the rest of the Invincible Girls camping for the weekend, where she plans to become one with nature and do plenty of reflecting in her journal just like Thoreau did. However, she finds that things are not as easy as they seem....