Summary

Thea Sisters are going to Big Apple ( New York... ) to cheer for Nicky as she runs the Big Apple Marathon. The Thea Sisters are staying at Pamela's house. Suddenly, they got a message saying that someone is going to burn down Pamela's dad's pizzeria. It is up to the Thea Sisters to solve this mystery and catch the person or the troublemaker who is saying that he or she will burn down the pizzeria.