As Thanksgiving approaches, Tony's feud with Ralph escalates, despite the intervention of Johnny Sack. At a frat-house mixer, Meadow and Jackie Jr. find they have more in common than mob-boss dads.

With Paulie in jail, Christopher becomes acting capo, but he gets off to a bad start with Patsy. Still troubled by Jackie Jr.'s death, Meadow contemplates taking a year off from college to travel. Meanwhile, Adriana is in a bind after ending her friendship with Daniele, and Silvio discusses a misunderstanding at a Newark riverfront construction site.

Silvio and Ralph must take care of a planned protest of the Columbus Day parade by a Native American group. At an Italian pride ladies' lunch, Carmela is embarrassed by anti-Mafia remarks. Meanwhile, Ralph deals with new relationship troubles, and Bobby receives some tough news.

A disparaging remark about his wife sets Johnny Sack off on a vendetta. Meadow decides to do volunteer work at the South Bronx Law Center; Furio hosts a housewarming party for the gang; Silvio and Chris make an offer to an old-time hit man named Lou DiMaggio; and Tony and Carmela find themselves at odds over the family's bill-consolidation strategy.

Tony and the gang throw Paulie a Bada Bing bash after his release from jail, but it doesn't take long for old tensions to resurface. Carmela's cousin Brian throws out a hypothetical investment scenario that Tony and Ralph attempt to turn into reality with the help of Assemblyman Zellman and a black community leader.

Paulie takes pains to integrate his mother Nucci into the social world at Green Grove. Meanwhile, Furio faces up to his inner feelings during a trip to Italy to see his ailing father; Ralph introduces Tony to his new 'goomar,' Valentina; and Carmela finds a new source of investment income.

At therapy, Tony likens himself to the 'sad clown,' but Melfi doesn't buy into his melancholy portrait. Meanwhile, Carmela drags A.J. with her to Furio's house to offer decorating tips and companionship; Paulie puts the finishing touches on some free artwork; and Christopher finds himself at a crossroads.

Tony continues to haggle with Johnny Sack and the two Carmines over the Esplanade profits. Carmela makes a decorating date she can't keep; Furio proves a reluctant companion to Tony on a casino junket; Paulie plays an impatient chaperone to some ladies from the nursing home; and Meadow debates the true meaning of a literary classic with her mom.

In the Season Four finale, Tony and Carmela contemplate purchasing a shore house, but a voice from the past threatens the deal. While Uncle Junior breaks out the Hearty Burgundy, Little Paulie and Benny break in a new sound system on the Stugots. With Carmine apparently intent on putting the past behind him, Tony and Johnny Sack weigh their options, carefully.

A flood of organized crime parolees changes the landscape of the Soprano/Lupertazzi alliance. Janice carries on the family's Sunday dinner tradition. Carmela and A.J. commune with local wildlife. Christopher balks at footing the bill on 'goomar night.' Tony tries to introduce Dr. Melfi to his 'other' self.

Tony sizes up a contractor's gift, then reunites with his paroled cousin, Tony Blundetto. Paulie and Christopher relive some not-so-special memories. Carmela launches a film club. Adriana grapples with her guilt. A familiar figure 'crosses over.'

Carmela and Tony reunite, if only to discuss Anthony Jr.'s dwindling college prospects. Feech takes Tony's crew on a trip down memory lane. Lorraine's allegiances get her into hot water. A.J. has a night to remember in the Big Apple.

While Christopher is away, Tony gives Adriana a ride home that proves disastrous. Meanwhile, the Soprano crew plays a game of 'telephone' with the story that turns it into something far more sinister when an enraged Christopher gets wind of it.

His father's longtime goomar sheds light on some of Tony's lingering emotional and financial mysteries. Meanwhile, Junior sees the upside of attending the funerals of fringe relations, while Christopher sees the downside of enabling an A.A. friend's new addiction.

A rumor involving his cousin puts Tony's relationship with Johnny Sack back on thin ice. Meadow helps get her boyfriend Finn a job. A.J. ponders a 'maximum-security summer' at Casa Carmela. Melfi links Tony's current guilt to a past job. Carmela learns that good legal help is hard to find.

Tony escapes to the Plaza Hotel for a night of rest and relaxation, but his dreams are haunted by past faces. Another casualty falls in the war between Johnny Sack and Little Carmine, and Tony B. heads to New York for revenge.

Gene Pontecorvo makes a final break from the mob life, while Junior's paranoid delusions could be the end of Tony.

While the gang begins to turn on itself, Tony finds himself at the threshold.

Johnny Sack asks for permission to get out of jail for his daughters wedding; Tony's on the look out for personal protection.

Paulie finds public opinion turned against him after an amusement ride accident, while Chris tries to start a new life as a husband and father.

Tony reflects on how growing up with Janice colors his attitudes now, while Vito tries to make a new life for himself in New Hampshire.

Maria Spatafore requests help from Tony for Vito, Jr. Tony's bad luck puts a rift between he and Hesh. A.J. makes a major choice regarding his future.

The relationship between Christopher and Paulie's falters, while A.J. grows depressed over his break-up with Blanca.

Tony seeks to find a peace with the Leotardo crew while dealing with rumors a member of his own crew may have flipped. A.J. makes a decision regarding his future and Junior's slide into dementia continues.