Davis finally shows up to see Helen after a string of cancellations. A furtive search through his luggage reveals a gift that may be inappropriate at this stage of their relationship. Fay rescues a lab rat from her experiments by her psychology professor, risking a bad grade and charges of theft.

Brian moves in with Alex, and both quickly become irritated by the other's annoying habits. Meanwhile, Lowell attempts to come up with a name for his sister's baby.

When Helen and Casey's mother arrives on Nantucket, Helen isn't sure which sister her mother came to see. And when she finds out her mother gambled away the $10,000 for her and Joe's wedding, she is convinced that Casey has always been the favorite of the family.

Meanwhile, Fay and Roy split a ticket to a Barbara Streisand concert; Antonio adopts Deedee as his own mother; and Lowell and Brian stuff themselves on Deedee's food in an attempt to see who can out-eat the other.

Lowell's innocent birthday gift to Casey lands him a show at an art museum when Casey shows off the gift to a museum director. Determined to launch both their careers in the art world, Casey relentlessly pushes Lowell's artistic abilities to the limit to try and meet the show's deadline, but eventually gives up after discovering how stressed Lowell becomes.

Meanwhile, Brian's efforts to finish a roll of film for Joe and Helen are not appreciated, as the prank ends up in the hands of Helen's parents.

When Joe is too busy with his new wife to spend time with him, Brian turns to food. He ends up trying to deal with his problems at a meeting of the "Eat-A-Holics." Meanwhile, Antonio tries to get used to tight shoes, after he pays $200 for them, and Casey gets hired by the Nantucket Tourism Board.

It's Roy's 12th birthday (he was born on a leap year), and Helen contacts Roy's son R.J. and convinces him to come back to Nantucket for the party. But the initial reconciliation is dashed when R.J. brings his significant other to the party.

Meanwhile, Brian helps Antonio out by driving the cab while Antonio waits for his driver's license.

On the verge of losing her job with the Tourism Board, Casey sees a solution when her sister city idea is accepted. But things go downhill when Brian sleeps with the visiting princess of prospective sister city Khirinan.

Meanwhile, Antonio offers to take the little princesses for their hair care appointment. It turns out to be two dogs, which he promptly loses.

Burdened with continual problems by living with Brian and Casey, as well as further delays in the building of their new house, Joe and Helen decide to buy another house. They solve one problem by selling their old new home, but another presents itself in the last moments in the old Hackett house.

Casey encourages Brian to use his insurance money to open a martini bar,offering to help Brian manage it.But things go awry immediately when the first customer through the door slips and falls on the floor.Brian's problems are compounded when he learns Casey never got insurance.

Brian and Helen's trip to New York to see ""Rent"" turns into a night mare when the theatre refuses to transfer the tickets from Helen's benefactor to her.Even worse a con-man robs them of their money and Helen is forced to compete in a drag queen contest in order to get the money to get home.

Meanwhile,A bad back leaves joe in the house alone with a suddenly talkative Antonio.

Kicked out by Joe and Helen, Brian and Casey move into a new home home with Antonio. Meanwhile, Joe and Helen's fling with nudism has them being threatened with blackmail, when the neighbor kids snap pictures of them.