Summary:Katie and her little sister Sophie change schools after moving from a small neighborhood to a big city, and Katie is very nervous. Katie meets Megan at the new school, and they become friends. Megan is outgoing and energetic, while Katie is quieter and enjoys being at home. There is another girl at school named Brooke. Everyone says Brooke is the coolest girl at school, but they are also intimidated by her. Megan thinks she's mean, but Brooke is actually a nice person. Her parents fight a lot, and she feels like she has to defend herself constantly, which makes her seem standoffish and arrogant. Katie feels insecure about herself, so she invites Megan and Brooke over in an attempt to seem cool. Sophie keeps interrupting, and Katie gets annoyed with her. In reality, Sofie feels left out because she admires her older sister and wants to spend time with her. Brooke is very kind to Sophie, and this surprises Megan, who thought Brooke was mean. Brooke reveals that she is very lonely at home and has no true friends at school. The four girls realize that they misjudged each other, so they decide to be friends.