Jo goes away for her first "college weekend" with her latest boyfriend Jason at Yale. Just after Mrs. Garrett leaves to take Jo there, Blair's sister, Meg, arrives for a surprise visit. Meg showing up unexpected is not the only surprise she has in store, she wants to become a nun. That fact is something Blair has a hard time dealing with. Meanwhile, Jo arrives back early after the car breaks down. She later has a spiritual experience and decides she too wants to become a nun.