The crew and the business
40 episodes of The Sopranos carry this thread, 1d 15h in all — 38 of them are in The Essentials.
Arc membership is derived from each episode's own title and summary text. It shows where a thread is foregrounded, not every episode it touches.
In airing order

A mobster passes out at a family barbecue and seeks therapy to understand why.

Tony is getting fed up with his mother. Brendan Filone acts against Tony's wishes. Salvatore and Paulie try to track down A.J.'s teacher's stolen car.

Tony encourages an unwanted son-in-law to divorce, Carmela learns another secret of Tony's, Meadow experiments with speed to study for the SATs, and Chris and Brendan find out the price of disrespecting Junior.

Tony tries to balance Junior against the other capos, while Carmela reasserts herself as the woman in Tony's life.

The FBI begins closing in on the DiMeo family. Tony and Carmela are angry over all the attention Italians get from the authorities, while Chris fumes that he's not getting enough attention.

The capos discuss what to do about the local soccer coach, while Junior's mouth causes him some embarrassment.

Tony tries to branch out into legitimate investments, while Chris and Adriana decide to try their hands at music production.

The stress Tony is going through begins to take its toll, and the hit Junior has ordered doesn't help.

Junior leaves prison due to ill health and placed under house arrest, while Livia's health also declines. Pussy begins talking with someone interested in learning more about Tony.

Richie Aprile gets out after ten years in prison and starts reasserting his authority while unaware of the changes made in the crime family's archetype. Meadow gets in trouble after a party gets out of hand.

Tony, Paulie and Chris travel to Naples to conduct a business deal, while Pussy becomes more stressed over trying to balance his secret lives.

Paulie and Silvio get promoted, Furio gets welcomed, Pussy gets pushed aside, and Chris gets frustrated with his Hollywood aspirations.

Chris awakens from his coma with a message for Tony and Paulie. Carmela, meanwhile, wants Tony to take a cut.

Tony continues putting the squeeze on David, while Richie discusses the possibility with Junior of removing some competition while 'Big Pussy' Bonpensiero continues to be an informant.

Junior feels the restrictions of his house arrest acutely, while Tony starts putting in hours at his actual job to allay FBI suspicions, while Junior and Richie uses the garbage pick up routes for a double purpose.

Richie and Janice get engaged, but Richie's violent temper finally takes him too far. Tony, meanwhile, breaks up with Irina, much to her dismay.

The FBI has trouble finding a new informant, so they attempt to bug the Soprano home. Meanwhile, Anthony continues to get into trouble at school.

Chris becomes a made man, while Tony experiences another panic attack. Meadow continues to seethe over Tony's treatment of her boyfriend.

Junior continues his cancer treatments, but the prognosis is iffy. Chris, meanwhile, finds himself under suspicion from Paulie.

While Silvio has the flu, Chris and Paulie run his collections for him, which results in the pair getting lost in the woods and nearly freezing to death while Tony's affair with Gloria goes sour.

Ralphie issues his final decision on the fate of Jackie Jr., Anthony Jr. faces military school after getting expelled, Paulie and Ralphie have a financial conflict while the FBI assigns Adriana a new "friend."

Columbus Day ignites tensions between Italians and Native Americans, and Bobby receives devastating news about his wife.

A joke sparks a series of hit contracts, while Carmela finds herself happier than perhaps she should be that Furio will be around for good.

Paulie has to take care of some rough relationships for his mother, while Tony's fancy for a fellow horse fancier lands him in trouble with Carmela.

Carmela and Furio grow too close for safety, while Paulie discovers that he's not as big a fish as he thought he was.

Junior's trial comes to an end, but Tony's trials are just getting underway. Also, the Sopranos almost purchase a house on the beach.

Some of the old guards are released from prison and want to get back in the action. Chris and Paulie are at each other's throats over matters of money and respect, and Tony decides to tell Dr. Melfi what's really on his mind.

With Carmine's passing and Feech's arrival, turf wars are breaking out around New Jersey. Junior's mental health, meanwhile, starts to decline.

Tony makes a request to Johnny Sack on behalf of his cousin, and Adriana makes a request to the FBI, followed by one to Chris.

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, while Christopher gives another try to enter the movie business, however this time as a producer rather than a screenwriter.

Tony goes home and returns to business, perhaps with a new frame of mind. Paulie receives a shock about his mother.

Christopher and Carmine travel to Hollywood to take the next step in making their movie but quickly realize they're out of their depth. Artie's restaurant falls prey to one of Tony's scams that was ran by Benny.

Vito considers starting a new life in New Hampshire, while Anthony Jr. looking for a purpose and finds it when he continues his pursuit of revenge against Junior.

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.

Johnny Sac finds out he only has 3 months to live. Meanwhile, 'Cleaver' premieres and is a hit, while Carmela has mixed emotions about it, saying too much of it is based on Tony.

Paulie shows up at Tony's house to tell him he's learned the Feds are looking into a murder case from the early 1980s. In fact it was Tony's first killing where he made his 'bones'. Tony decides he and Paulie need to lay low for a while and they head off on a road trip to Florida. They reminisce about the old days but Paulie is definitely getting on Tony's nerves. They also find that many things along the route have changed over the years. Tony is particularly interested in knowing who may have told Johnny Sack about the fat joke directed at his wife. Uncle Junior meanwhile has taken to organizing a poker game with his new friend Carter Chong. Junior's as grumpy as ever but continues to suffer from memory loss from time to time. Carter likes Junior's rebellious attitude but things change when the doctors change Junior's meds and he becomes far more docile.

Christopher and Paulie are making a lot of money off selling stolen tools through Christopher's father-in-law, Al Lombardo. When some of Paulie's guys break into Al's store to take some of the equipment, Christopher goes ballistic and takes matters into his own hands. Paulie has his own way of getting back at him. Tony takes Christopher to task for not being around much. Christopher explains the temptations at places like the Bing but Tony is anything but sympathetic. Christopher is soon drinking again and it leads to tragedy. Tony tells Agent Dwight Harris about the two Muslims who used to hang around the Bing but who seem to have suddenly become observant. AJ is depressed over his break up with Blanca and there's not much Tony or Carmela can say to console him. He's crying a lot and quits his job. Tony tells him to go to a party Patsi Parisi's college-aged son has organized at the Bing. He starts hanging around at their frat house and is all too keen to get involved in their business dealings.

The Beginning of the End. Phil finally puts the hits on the Soprano clan and Tony puts a hit on Phil which results in mistaken identity making everyone think its safe when its not and it results in a Death and Coma. After this happens Tony separates from his family to go into hiding as he sends Carmela, Janice, and the kids into hiding.

Tony and his family have to stay in hiding until Phil Leotardo is dealt with. His family don't like the lifestyle they have been forced to adopt. AJ and Meadow move onto the next step in their lives. Tony confronts Junior one last time.