When Leonard and Sheldon meet a 15-year-old physics prodigy, Sheldon is distraught that this boy genius is younger and smarter. In an attempt to restore a sense of purpose, the boys come up with a solution to derail the young prodigy's research.
It's the first day of seventh grade and Addie's looking forward to unveiling her new and improved image. In order to become popular at school, she decides to host a party that Randy usually hosts, but he can't because of an accident.
When Addie finds out that her friends have been telling her little white lies, she takes things too far by drawing up an honesty policy for Zach and Geena. Meanwhile, Ben attempts to avoid doing work wherever possible.
Addie gets upset when Geena tells her that she and Jake are just pals and nothing more, so Addie gets all dolled up and starts reading glossy magazines to impress Jake, but that ends up just making everything worse.
Addie wants to become popular at school and maybe even famous, so she auditions for an all-girl band and gets in. However, she soon realises that being in a band isn't exactly what she thought it would be like.