On the day of New Christine and Richard's wedding, Christine hooks up with Papa Jeff again. Then she meets his fiance.

Christine tries to convince everyone that her date for the rehearsal dinner isn't a complete jackass. Matthew hooks up with New Christine's half-sister.

Christine and Matthew try to lose weight but only Matthew does. Richie tells Richard that he doesn't want him to marry New Christine.

When there is an outbreak of lice at Richie's school, everyone thinks that Richie and Christine are responsible.

Christine has to look after Marly and Lindsay when they go into labor. Richard saves the day.

Christine makes a new friend. Matthew moves in with Richard and New Christine.

Christine and Richard fight over who is the better parent. 

When Barb and Matthew move out of Christine's at the same time, she tries to prove that she is fine without them. Meanwhile, Matthew sees a new side of Lucy.

Christine and Barb take New Christine to Vegas for her bachelorette party. Richard asks Matthew to be his best man which upsets his brother Joe.

Christine goes to a meeting at Richie's new school where she runs into a man who spread dirty rumours about her in high school.

Christine and Barb decide to turn their gym into a spa but soon find out about some inappropriate activities going on there. Richard makes friends with the female volunteers at Richie's school, but his manly advice gets the women in trouble.

Christine and Barb lose their gym franchise when the company finds out they are married. Richard tells New Christine he has had a vasectomy.

Everyone spends Thanksgiving at Christine and Matthew's parents' house but there is no sign of their father.

Christine tries to prove her new boyfriend is crazy. Matthew realises his new girlfriend looks a lot like Christine.

Ritchie is chosen for a commercial audition, but he is more interested in going for his yellow belt in karate.

Christine brings Richard along on a date with her new boyfriend, which puts him off.

Christine and Barb meet some guys at the video store, but Christine doesn't want to be tied down.

When Ritchie decides he no longer wants to say "I love you" to Christine, she asks Richard to get her pregnant again.

Ritchie wants to join the Reptile Club, so Christine has to go out on a date with a reptile specialist.

An magazine article about Barb brings in a few new clients at the gym, which makes Christine uncomfortable

Richard asks Christine for her engagement ring back so he can give it to new Christine. Matthew falls in love with his first therapy patient.

Barb finds out she will be deported now that she is divorced. Richard proposes to new Christine.