Peter and Annie Brennan are happy to have finally raised their three children and sent them out into the world. Unfortunately for them, the kids decide to come back into their lives.
Annie tries to stop her son Tim from dating her neighbor and friend Maggie. Peter tries to help Todd come to a decision between his fiancee and his girlfriend.
In an effort to help Sara with her love life, the family sets her up on dates with two interesting men. While Sara continues to be interested in the guys after the date, the family learns and must handle the fact that the suitors didn't share her exhuberance.
When Peter and Annie find out that because of their children's problems, they're being looked at as poor parents by people they look down on as parents, they decide to quell the talk through lies.
Tim takes a job to please his parents but ultimately quits it to please himself.
Sara decides to try a change in outlook and rebels against her parents with the help of her brothers. Peter thinks he finally will win an argument against Annie when he finds an article that says too much fish is bad for you.
Tim and Maggie are told they can't adopt a dog because of their lifestyle. Todd's most recent break-up has Annie questioning his ability to treat a woman properly.
Peter and Annie strive to get Sara to see more in a male "friend." Tim goes wild for his 21st birthday, but then confesses to Maggie, who has surprises for him in exchange.
Peter and Annie host their family's Thanksgiving dinner on a different day so that they can all share it together.
Peter and Annie's attempt to rekindle their youth with some pot is foiled when their children start to arrive out of the blue.
Maggie's ex-husband Bill returns to town and takes on Tim for her affections. Bill's presence causes Tim to step up his relationship with Maggie.
A visit from Peter's mother upsets the Brennan household throwing additional burdens in preparation for her upcoming birthday celebration.
Todd clashes with Alex, a new dental office employee, but also feels drawn to her. Tim and Maggie work on the final details of their wedding, but Peter and Annie feel that there are still issues the couple needs to work out.
Sara is jealous of the interactions between her mom and Alex and tries to get even by palling around with her mom's friend Barb. Tim and Peter try to settle an argument about the house rules over a game of billiards.
Peter and Annie try to pal around with some new friends. When Sarah learns that Todd hid a note from a boy back in high school, Sarah reveals that she faked his denial letter from Berkeley.
Peter and Annie are excited to meet Sara's date and hear about Tim's new job until the reality of each situation sets in.
Peter puffs out his chest when his manhood is questioned and tells of how he and Annie broke their headboard. Annie goes to the adult section of the video store for some marriage fodder. Todd goes toe-to-toe with a rival dentist.
Peter and Annie believe that Sarah is gay and revel in the hipness of it until they find out she's really been meeting with a female real estate agent to buy the house next door. Tim tries to get revenge on Todd for stealing his favorite t-shirt by taking his prized possessions including his black and white photo of a naked woman who Peter later reveals to be Annie.
Peter's birthday present from Annie is actually something that Annie wanted. Todd discovers that the office doesn't appreciate Sara's parties as much as she'd thought and her coworkers seek his help in ending them.
Sara's recommendation for Tim is not flattering and he loses his jobs for the qualities she stated in it. Tim tries to prove her wrong though and lies about still having the job. Peter feels threatened by Annie's theater co-star and Annie suggests couples therapy.
Annie plays matchmaker between Sara's hairstylist and Alex even though Sara contends that he only has eyes for her. When Todd catches the couple together, he confesses his true feelings. Tim's stress diagnosis frustrates Peter.
Annie asks the children to write what's important to them as her birthday gift. Tim balks at first, but changes his tune when he sees the effect on his mother. Sara and Peter get into a neighborly spat. The romantic tension between Alex and Todd comes to a head when Sara's house has a tree fall on it.