Trying out the calender on her new PDA, Jen suddenly realizes that it's possible she could be pregnant. She fakes a headache and tries to go to the drug store to get a pregnancy test, but as she's trying to leave Antonio, Carlotta and Seth arrive at Cristian's apartment. Carlotta's brought dinner with her and as they start to unwrap it, Jen feels sick and almost passes out. She insists on going to the drug store alone to get a "special headache medicine" despite Cristian's protests. Outside the apartment, she runs into Al, who's come to accept Cristian's invitation to dinner. He can see that his being there makes Jen uncomfortable, though and he pretends he had another invitation to go somewhere else and he leaves. Later, Jen comes back with a pregnancy test kit in her purse.
R.J. and Keri go to the coffee shop at the mall when Keri and Antonio first met. R.J. thanks Keri for sticking up for him with Renee and says he hopes they can get to know each other and become closer. Their conversation is interrupted by a phone call from Antonio, he tells Keri he'll come pick her up and take her to Cristian's apartment. He tells her that her father is invited, too (of course, Antonio doesn't realize the 'father' is R.J.). Keri hangs up and tells R.J. about the invitation and also tells her the person she's seeing is a police officer, but she doesn't give his name. R.J. refuses the invitation, given his bad relationship with the Llanview Police Department. Keri gives R.J. a gift, a framed picture of her at her graduation. R.J. leaves and Antonio arrives a few minutes later. R.J. watches through the window and Keri and Antonio greet each other. Antonio brings Keri back to Cristian's apartment to have dinner with his family.
Renee, Ben and Viki are in the solarium at Llanfair when the phone rings. It's a drunken Roxanne demanding to speak with her daughter. Which one, Viki asks. Whichever one has the money, Roxanne replies. Viki is disgusted and hangs up and tells Ben and Renee what Roxanne said, unaware that Jessica is standing by the door. She apologizes to Jessica, but Jess says it's OK, she knows Roxanne is only interested in the money and Natalie is the one that has all the money now.
Allison goes to see Roxanne in Atlantic City with a present and convinces Roxanne to let her in by claiming the present might be booze or cigarettes. But when Roxanne opens the box, she's angry to find it full of fake money. Allison tells Roxanne that she has a plan that will make them both filthy rich.
Natalie is looking at an ornament on the tree from Jessica's first Christmas when Starr arrives and startles her. The ornament falls to the floor and breaks. Blair catches up with Starr and Natalie is not very nice to her. Viki enters the library and Starr gives her the present they brought, then demands her own present. Viki sends her to the solarium, where Ben and Renee give Starr her gift, a telescope. Starr thinks it will be great to use to spy on people. Back in the library, Jessica is very upset when she finds the ornament is broken and accuses Natalie of breaking it on purpose. Natalie defends herself, saying Starr startled her and it was an accident, and is grateful when Viki decides to believe her. Viki gives the two girls identical cameos that used to belong to herself and her sister Meredith.
At the mill house, Cassie thinks that she has figured out what is going on about the baby. The baby is really Todd's baby that he had with Nellie, which is why he's so determined to keep the baby. Todd calls Cassie crazy and swears on Starr's life that he's never had a baby with anyone but Blair. Then he scoops the baby up and rushes out the door with Cassie following close behind.
They end up at Llanfair in the solarium. Blair has gone outside to watch Starr using her telescope and is standing near the partially open solarium door. She overhears Todd telling Cassie how important the baby is to him, how he screwed everything up and this is his way of fixing things. He knows Blair will come to love the baby too if she will only give it a chance. Blair enters the room and finally holds the baby. Starr stands by Todd and Blair to see the baby, the entire family is finally together.
Due to the Christmas holiday, today's episode was preempted. Programming will resume on Wednesday the 26th where Monday's show concluded.