In an attempt to take over Sonny Steelgrave’s business, mob head Paul Patrice frames Sonny for several murder attempts he makes on the life of the special prosecutor investigating Sonny.

Sonny’s cruel punishment of a lounge singer who wants out of his contract triggers a cascade of events that leads to Vinnie’s being photographed with McPike — a photo that is to be delivered to Sonny.

An outraged Sonny Steelgrave accuses Vinnie of betraying him to his arch-rival, then realizes the devastating truth — that his paisan is an undercover Federal agent.

Vinnie tells Mel Profitt he is leaving to go home to New Jersey, but Mel offers him the biggest cocaine distribution network in the country — a plum that Vinnie feels is too juicy for any undercover cop to turn down.

Hiding out in Vancouver after the fall of the Steelgrave empire, Aldo Baglia sees a photo of Vinnie in the paper and decides to even the score, sending Vinnie into a coma from two serious gunshot wounds. Roger, using his CIA contact, tracks down Aldo.

With Mel and Susan Profitt undone, McPike begins dismantling their empire, but Vinnie demands to stay on the case to get to the bottom of Roger Lococco’s ties to a rogue CIA operation to stage a Caribbean coup d’etat.

Roger Lococco in effect signs his own death warrant by testifying to a Senate committee about a cabal within the U.S. intelligence community, but to back him up he needs Vinnie to testify as an O.C.B. operative — testimony that would end Vinnie’s career as an undercover agent.

After resigning, Vinnie returns to his old neighborhood to try and get some peace after his life undercover, but is distressed to find white supremists are stirring up trouble. Daryl Elias is promoted to OCB director and orders Frank to either bring Vinnie back to work, or in for debriefing. After a synagogue is trashed, Pete speaks out against the white supremists and is then murdered in a hit and run accident, making Vinnie rejoin the OCB to find his killer.

When garment manufacturer Eli Sternberg cannot get a loan to bail out his business, he turns to mobster Ricky Pinzolo for the money. David goes to the OCB for help when he finds out Eli is in debt to the mob. Vinnie meets with David, then reluctantly agrees to take the case, running into opposition from Eli, who doesn't want a hood working for him. Pinzolo demands that Vinnie keep him apprised of everything going on. Vinnie wins Eli's trust when he gets a delayed shipment released from customs.

Raglin uncovers evidence that Carole is working with Pinzolo to bankrupt Eli. David confronts Pinzolo and forces him to take him to the bank to give him the money he cheated Eli out of, culminating with David getting killed as a suspected robber. David's death sends Raglin into a tailspin, digging up memories of a past case where another innocent bystander was killed. (source: http://www.plasticcow.com/wiseguy)

Concerned that Vinnie is addicted to the pain pills he's been taking for his leg, Frank calls in Paul Beckstead, who orders Vinnie to undergo a routine physical exam. At the hospital, Daryl Elias is undergoing therapy and, holding Vinnie responsible for his downfall, he accesses Vinnie's file and orders that he be held for psychiatric evaluation. When Vinnie resists, he is sedated and locked up against his will. While in his drug-induced twilight zone, Vinnie's worst nightmare comes to life in the form of Sonny Steelgrave, who blames Vinnie for his death. (source: http://www.plasticcow.com/wiseguy)

Frank exchanges Pinzolo's jet with the DEA for a small record company, then allows Vinnie to run it. Bobby Travis talks Vinnie into hiring him by promising Vinnie he'll teach him all he needs to know about the business. Getting caught up in the glamour, Vinnie decides he's going to revive Diana's career by having her cut a record. (source: http://www.plasticcow.com/wiseguy)

Despite Paul Beckstead's misgivings, Vinnie uses Diana's record to start a bidding war in the hopes of selling Dead Dog to a bigger label. When Vinnie signs elusive James Eliot, Newquay offers to buy Dead Dog without Vinnie, Bobby or Diana. Diana balks at Newquay's offer, revealing they used to be lovers. Contrary to Frank's wishes, Vinnie sells Dead Dog to Isaac. Frank warns Vinnie that Newquay has been digging into Vinnie's past. (source: http://www.plasticcow.com/wiseguy)

Winston serves Vinnie with an order to vacate, which Vinnie counters with the vow that he's going to stay at Radiance for the duration of his contract, causing Winston to dig deeper into Vinnie's past. Winston orders Vinnie and Bobby to work in the mailroom. Bobby uncovers Vinnie's file, which was sent to Winston, and confronts Vinnie about being a cop. Winston is arrested when he agrees to buy the illegal tape of Eddie from Isaac. (source: http://www.plasticcow.com/wiseguy)

Wrapping things up at Shakala, Frank reminds Vinnie that they're scheduled to go fishing in the morning. Vinnie and Amber go to dinner, stay up all night talking. Vinnie is surprised to find they're going fishing with Lifeguard, who is in an emotional struggle over his daughter's plans to marry. Frank, Vinnie and Dan have a long talk about relationships around the campfire. Dan agrees to meet his future son-in-law. Frank tries to reconcile with Jenny. Vinnie decides to go after Amber. (source: http://www.plasticcow.com/wiseguy)

While keeping vigil over Rudy, Vinnie learns that Grosset's father-in-law was also hit, setting up a power struggle within the mob. Albert courts Vinnie's alliance by letting him in on his plan to smuggle millions of dollars worth of heroin into the country. Vinnie goes to the Commission and demands Rudy's seat at the table. (source: http://www.plasticcow.com/wiseguy)

Frank and Dan urge Vinnie to try and reconcile with Amber. At their urging, he goes to her, they make love, then she demands that they see a counselor. Following their therapist's advice, they go away for the weekend, where they both realize they're too involved in their careers to be able to maintain a relationship with each other. (source: http://www.plasticcow.com/wiseguy)

Vinnie attends his 15-year high school reunion and bumps into two old friends, one a mob lawyer and one a detective. Vinnie is torn between telling Denise he's a cop and protecting his cover. Frank tells Vinnie that Denise has bugged his house, making Vinnie furious and determined to teach Denise a lesson. Denise and Mooch get married. (source: http://www.plasticcow.com/wiseguy)

Vinnie is called to Washington to investigate a counterfeiting operation designed to sabotage the Japanese economy. Frank warns Vinnie to be careful, that there is some kind of power play going on, because Paul was mysteriously sent to Thailand, leaving Mark in charge. Vinnie suspects Masters wants to set him up for throwing the coup of Isle Pavot. Mark is relieved of duty when he loses control after his former mentor is murdered. Vinnie meets Kate Gallagher. (source: http://www.plasticcow.com/wiseguy)

In the aftermath of economist Valenti's assassination, new paths open in Vinnie's investigation of the plot to disrupt the Japanese economy. Although Vinnie strongly suspects that Masters is behind the plot, he follows the trail Masters sets out for him. Vinnie and Kate both go to Utah to track down the mysterious Mr. Wilson. (source: http://www.plasticcow.com/wiseguy)

Vinnie and Dan find evidence of the counterfeiting ring in Utah, but it seems to have come too easily, so Vinnie heads into the mountains to meet a billionaire recluse, Prescott Wilson, who might hold the key to the truth in the case. Frank and Vinnie convince Senator Pickering to delay passage of Senator Getzloff's trade bill while they search for the plane carrying the yen. Masters presents the Attorney General with photos of Vinnie and Kate talking with Wilson, as well as the printing plate with Vinnie's prints on it. Frank is ordered to arrest Vinnie. (source: http://www.plasticcow.com/wiseguy)

Vinnie is the fall guy in the alleged plot to disrupt the Japanese economy, prompting the Attorney General to launch a classified Senate investigation that could cost Vinnie his badge. Fearing her career is ruined, Kate attempts suicide. After hearing all the evidence, the Attorney General relieves Vinnie of his duties, stating there's enough to prosecute him for treason. Prescott Wilson arrives and places all the blame on Masters. Masters goes off the deep end and kills Strichen. Vinnie is cleared of all charges. (source: http://www.plasticcow.com/wiseguy)

Frank's reporter friend tells him about a corrupt town in Washington, spurring Frank to assign Vinnie to the case. Vinnie sets his cover as a truck driver whose rig just got repossessed. The local sheriff investigates Vinnie and finds out he used to be a cop, so he offers him a job as deputy. Vinnie prevents Bobby from killing Volchek, then fakes Bobby's death to win Volchek's trust. (source: http://www.plasticcow.com/wiseguy)

Vinnie calls in Roger Lococco to take over the case, then holes up in a seedy hotel in Seattle. Frank is more interested in looking for Vinnie than in nailing Volchek. Paul orders Frank to continue the case and offers him another agent, which Frank refuses. Roger takes over as sheriff. Dan moves to Seattle to support Frank and look for Vinnie. (source: http://www.plasticcow.com/wiseguy)

Depressed, Vinnie contemplates suicide, then hears church bells. He goes to confession and breaks down, begging Father Pat to help him. Frank goes to Seattle to look for Vinnie. Vinnie tells Father Pat about the toxic dumping, and the priest arranges a press conference. Frank finally finds Vinnie at the church. Kousakis overhears the plan to expose him on the news and shoots at them, wounding Frank and Father Pat. Vinnie and Dan chase Kousakis. Dan finds out Frank is in critical condition and goes to the hospital. After trying to revive Frank, the doctors give up when he flat lines. (source: http://www.plasticcow.com/wiseguy)