Many of the girls become smitten with Byron Walcott, their handsome new geology professor. Professor Walcott's knowledge and enthusiasm for geology inspire Denise to develop a fascination for the subject. Although Denise mocks the other girls for their crushes on the professor, she also mistakes his attention for romantic interest. Stevie confronts Professor Walcott and accuses him of leading his students on. Dwayne witnesses their argument and suspects that they like each other. Denise feels like a fool for misreading Professor Walcott's intentions, but quickly gets over it. She plays matchmaker for Stevie and the professor. Maggie concludes that Americans require too much personal space; she gets on everyone's nerves by cutting down on her ""body buffer zone.""

As a class assignment, Maggie and Dwayne must care for eggs as if they were children. Maggie becomes extremely wrapped up in the project, and nearly skips her volleyball game because she is worried about the egg. She finally allows Jaleesa to watch the egg, as she is already babysitting Stevie's son J.T. Jaleesa leaves Whitley in charge while she helps Denise find a calculator, and the egg disappears. Maggie completely freaks out and puts up fliers around the campus. Stevie reminds Maggie that the egg is not a child; she states that real parents can also make their share of mistakes. Although Stevie is a good mother, she once lost track of J.T. in a department store. They discover that J.T. liked the egg so much that he had taken it to his room.

Denise becomes depressed about her grades. To take her mind of her troubles, she calls her brother Theo and asks him to visit for the weekend. Theo, a high school senior, is considering applying to Hillman. He quickly makes friends on campus and has little time for Denise because of his busy social calendar. During an interview, the dean stresses that Hillman is a very difficult academic school. He warns Theo that his fun-filled weekend might be giving him the wrong impression. Denise later reiterates this over dinner; she was an excellent student in high school, and now is having trouble just passing her classes. She wants to take a semester off, but Theo encourages her to tough it out. Meanwhile, Maggie tries to write a letter to her boyfriend.