Pen pals Molly and Olive consider themselves best friends even though they have never actually met because Molly lives in New York City and Olive lives on a farm in Iowa--but when Olive finds a diamond bracelet in the grass the two girls start to wonder if they can finally get the money for one of them to visit the other.

Pen pals Molly and Olive are both having relationship problems in their third grade classes--Molly is struggling with Jenna, a new girl, who seems to think that name calling is a way to fit in, and Olive has joined a gymnastics team which is putting a strain on her friendship with Emma, whom she has know for years.