Nathalie can't believe it. Her best friend Reagan is ditching her to be BFFs with the class popular girl. They'd been best friends forever, but when Queen Blair decides that she wants Reagan to be her BFF, Reagan is gone in a flash. Catherine and Isabel can't believe it either. They're best friends just like Nathalie and Reagan, and the four of them always hung out together -- but now what? Will Nathalie get Reagan back? Does she even want her back? Will the group ever be the same again? Confusion and hurt feelings take over -- and that's just the start of it!