Caitlin learns that she has epilepsy and doesn't want her friends to know. While attending Susie's slumber party, Caitlin has a seizure and her friends find out. Caitlin loses the lead part of the school play to Kathleen and decides to drop out of the show. She later realizes that dropping out won't change her condition and re-joins the show.
Meanwhile, a painfully shy Michelle is terrified to give a speech in front of the class. Joey teases her by calling her a mouse (quiet like a mouse) and making squeaking noises. When Michelle tries to get out of the speech by telling Mr. Raditch she has a sore throat, he doesn't fall for it and tells her to talk about something she knows. She gives her speech on her shyness, and everyone loves it. Afterward Joey tries to get Michelle to write his speech.
