Joe, Brian, Helen, and Lowell head to Boston for a night on the town but end up at a party that's more than what it seems. Roy, Fay and Antonio pool their resources to win a radio contest.

To Helen's disgust and Brian's envy, Joe starts dating a 19-year-old co-ed. Roy and Antonio find a dog whose cute charm no woman can resist.

When Brian's old friend shows up and they resume their wild, partying lifestyle every night, Alex grows increasingly neglected. Lowell takes in his idol, over-the-hill television superhero Big Strong Man, who takes advantage of his hospitality.

After his therapist pronounces him fully recovered from his break-up with Alex,Brian plunges back into the dating world.His efforts at the Club Car yield nothing of interest (despite Antonio's assistant with the ""Good Cop,Bad Cop"" Routine),so he follows the advice of others and starts dating casual friend Joan.That elusive ""Spark"" that is missing from their first three dates finally comes to life when Brian breaks up with her,but for the ""Spark"" that was there during their dates is now gone.

Meanwhile,Lowell prepares a commencement address for his alma mater and Casey has trouble getting a good haircut.

When Roy flies in a mail-order bride from Russia,Helen tries to convince Roy and Anya that this marriage should never be,but both ignore her.Anya's resolve is weakened with a chance encounter with another man,and the sight of her weeping just moments before their wedding convinces Roy to free her from his commitments to him.

Meanwhile,Fay convinces Lowell to pretend to be her lover to impress her soon to be arriving friends,but Lowell insists on cramming and it finally gets to Fay who calls the whole thing off just moments before they are to arrive.

After receiving the news that he might be the father of Sara's little boy,Jason,Joe is advised by Roy to keep quite on the whole affair,but Joe's guilt forces him to tell Joe and Helen.Brian is angry that Joe slept with his ex-girlfriend;Helen is upset but supportive.When blood tests reveal that Joeis not the father,Joe and Helen are happy.But it dashes Brian's hopes of Sara staying on the island as she decides to leave to find the Jason's true father.

Meanwhile,Lowell questions his choice in careers and Antonio struggles to make Casey his valentine.

When digging through the rubble of Helen's home, Brian and casey unearth a suitcase and photgraph that had been the hackett brother's only inheritance from their late father. Brian's attempts to remind Joe of that fail,but Joe later sees a vision of his late father and forgives Brian. Meanwhile,Antonio executes his revenge on Brian and Casey and Helen takes out her anger on Casey's clothes.

Joe and Helen's initial fortune at landing famous architect Y.M. Burg to design their new house soon turn sour as he suggests a house shaped like a giant "7."

Meanwhile, Brian hires a new mechanic,Budd Bronski, who attempts to live down a previous "incident."

A publicity disaster occurs when Antonio (running the desk while the brothers go to a hockey game) bumps the Bruins abrasive star goalie Danny "Dead End" Connelly off a Sandpiper flight to a critical game, causing the Bruins to lose.

Meanwhile, winter tourism on the island takes an upswing when Casey welcomes the International Society of Masochists to Nantucket.

Joe and Helen meet the next-door neighbors, Steve and Barbara, but what starts out as pleasant soon turns disturbing when Steve asks for $5000 to cover his gambling debts. Becoming increasingly paraniod after a fight Joe and Helen decide to try and make amends, only to find out their new neighbors are only on the island for the month.

Meanwhile, Antonio recieves his Uncle Bernardo's personal affects after he dies. Which includes a set of perfume scented love letters appearantly from Bernardo to a certain very famous movie star of the times (Gina Lollobrigida). Hearing this Antonio suddenly becomes a suave ladies man with confidence, until he finds out his Uncle wasn't in love Gina, but Gino.