The university requires that the guys promote science careers for women. Sheldon feels that they would be too late talking to college students and that they first try it at the middle school level. Howard proposes that they go to his old middle school since he is an astronaut and their favorite alumni. Raj visits with the girls seeking advice for his first date with Lucy. Bernadette suggests Disneyland which is too crowded for the timid Lucy. The girls get all excited about going to Disneyland themselves rather than helping Raj. They call in sick, head to Disneyland and get made up as Disney princesses. Penny wanted to get drunk, ride the rides and throw up. Bernadette is Cinderella, Penny is Sleeping Beauty, and Amy is Snow White. At the middle school, Sheldon talks about Madame Curie who's radium research killed her, Howard doesn't excite them since he didn't fly the spacecraft, and Leonard obsesses over his parents as the scientists who didn't let him follow his dream of being a rapper. Sheldon contacts Amy and Bernadette to talk to them over the phone since they are women scientists. Lucy and Raj have a texting date at the library since he can't talk to her. They enjoy themselves though Lucy flees when she tries to kiss Raj. Back at their respective apartments, Bernadette gets Howard turned on while all dressed up, a nonchalant Penny finds Leonard tearing all his clothes off and Sheldon declines to kiss the sleeping Snow White.