Clair wants to replace the living room couch but Cliff is reluctant to let the old couch go. Also, Clair is invited on a television talk show. However, when she finds out she is only asked her thoughts as a black woman, she leaves the show.
One of Cliff's patients is a young, unmarried teenager without other known family. Cliff finds the girl's grandfather so someone can be with her when she delivers. When Clair meets the grandfather, she realizes he cannot read or write.
Rudy complains to her parents that she doesn't get to do what her friends can and she still has to follow so many rules. So Cliff and Clair allow Rudy to stay up as late as she wants to teach her a lesson.
Theo & his friends meet Cliff's former basketball coach. The Huxtables invite Coach Barry & his wife to their house for dinner. They watch a taped old basketball game together where Cliff misses all his shots & the coach sent him to the bench.
Sondra finds it difficult to be a stay-at-home mom with baby twins. When the Tibideaux visit Cliff, Clair and Cliff's parents, Sondra vents with her mother and grandmother who have been there and done that with young children.
Theo and his friends go to the cafeteria to impress a girl with a very expensive watch one of them found on the street. Unfortunately it appears that the watch was reported stolen and his friend gets in trouble.
Theo asks his parents to give him fifteen hundred dollars for an educational summer trip to Egypt. The Huxtables are not sure about giving him the money so he invites his teacher to the house to talk to his parents.
Theo has found a place to live with his friends and moved out. Denise returns from her trip from the rainforest of Africa along with her husband and reveals to her parents that she's been married. Cliff & Claire are shocked at the news.
When Cliff tells Theo of some of the hi jinx he did when he was younger. Theo decides to try it himself. But he ends up damaging his apartment, which leads to the landlord throwing him out. So Cliff tries to some things with the man so Theo can move out of the house where he has been staying.
Denise & her husband Lt. Martin Kendall are leaving for the Navy base to live in a house chosen there but Denise forgot to call for approval so they find out last minute that there's no house available for them and return to Cliff's house. Meanwhile Cliff explains to little Olivia how babies are born in this world.
Claire sends Cliff to the store to buy some stuff for Thanksgiving dinner on a very rainy day and he returns soaking wet. Unfortunately he keeps forgetting some products and Claire sends him again & again. Meanwhile Denise invites Martin's ex wife to Cliff's house because she's all alone. Finally Cliff arrives home again just in time for Thanksgiving dinner.
Claire and Denise are going to the Caribbean and Cliff stays all alone with Rudy & Olivia. Rudy comes to him with a problem between her & her friends but Cliff's advice makes things worse for Rudy. Meanwhile Theo takes Olivia to the cafeteria and uses her charm to collect other girls' phone numbers. Also Vanessa tries to get her father's permission to go to another girl's party with older boys.
Theo meets Cliff & Martin at the cafeteria sitting with two willing beautiful girls. Later at the Huxtable residence Martin tries to explain to Cliff the situation on how he & Denise met and got married. Afterwards the family organizes a surprise for Cliff that will make him very happy.