McCoy, Price, and Maroun are getting to work on charging Sirenko. Price, Maroun, and Benson ask the girl about the other person on the boat with Sirenko. They find out that the person is Daniel Rublev and he is friends with Putin. Stabler and Jet take down someone named Andre who knows a lot about Rublev. Price and Stabler are able to get enough evidence from Andre where McCoy allows Cosgrove and Shaw to arrest Rublev. Price wants to try trying both Sirenko and Rublev. Andre does not testify and the only other person to verify the phone video of Rublev and the two girls is the girl. Benson is trying to find a relative for her and has her in a safe house. Rollins tries taking her to see Benson but gets into a shootout and Rollins is shot in the process. Benson moves the girl to Canada with a relative which leaves Price infuriated. Price cannot extradite her so they decide to make a deal with Sirenko in exchange for a testimony. Stabler is infuriated at this as his CI was killed by Sirenko. After Sirenko testifies, Rublev requests a deal, which Price does not accept. As they leave, Rublev is shot and killed. Sirenko's operation is rolled up, and Benson is shown to have lied about Canada, as she meets in Central Park with the girl.

---

This episode concludes a crossover event that begins on the season three premiere of Law & Order: Organized Crime and continues on the season twenty-four premiere of Law & Order: Special Victims Unit.

A politician's daughter is found dead after an apparent mugging; once Cosgrove and Shaw start to unravel the details behind her trip, they realize this isn't a random act of violence; Price makes a risky move; Maroun works to salvage their case.

Cosgrove and Shaw race to find the man who shot and killed seven Asian Americans on a subway. After his arrest, Price finds himself going against his morals to pursue a federal death penalty.

When the young author of a tell-all book is found dead, Cosgrove asks a former mentor for help with the case; Price has an uphill battle in court when a search and seizure is deemed illegal.

Cosgrove and Shaw piece together the clues of what happened to a murdered law student, uncovering a web of blackmail and lies; Price fights to have a piece of shocking testimony thrown out.

When a fashion designer is killed on the night of his boutique opening, Cosgrove and Shaw must track down a suspect with very little evidence and no witnesses. Maroun is shocked to find her own name on the defense’s witness list.

A crisis consultant who’s made many enemies on behalf of her clients is murdered. Price and Maroun must set aside the potential damage to a witness’s reputation in order to strengthen their case.

When a decorated military veteran is found murdered in his own home, Cosgrove and Shaw work with his daughter to uncover an important clue. Price and Maroun must untangle the stories of other service members connected to the victim to make their case.

A suspect arrested for murder escapes police custody after months of waiting for his day in court. As a hostage situation erupts, Shaw must re-examine his conduct as the arresting officer. Price questions his faith in the justice system.

When a homeless migrant is murdered, evidence leads Cosgrove and Shaw to a mysterious cover-up at a construction site. Price and Maroun push a key witness to testify, knowing that speaking out could lead to legal consequences.

When an ex-con is found beaten to death, Cosgrove and Shaw arrest an unlikely culprit. Maroun must put her personal feelings for the suspect aside and take the lead in court when she and Price can’t agree on the Best trial strategy.

After a teenager is killed, Cosgrove and Shaw discover what lengths kids will go to become famous on the Internet. Price and Maroun take a risk to go after who they believe is the perpetrator, but they wind up back where they started.

When a graduate student is found dead, Cosgrove and Shaw follow the evidence to a suspect with no clear motive. After Price and Maroun uncover a money-grabbing scheme within a church, McCoy warns them to focus on the suspects and not the institution.

After shots are fired in a popular nightclub, Cosgrove and Shaw suspect the spree was a ruse to target a sole victim. When security footage mysteriously disappears, Price and Maroun must rely on a witness who values reputation over facts.

Cosgrove and Shaw must unravel a string of false crime reports to get to the truth surrounding a respected doctor’s murder. Shaw becomes the target of retaliation when he files a complaint against two patrol officers.

When a celebrated journalist is killed, Cosgrove and Shaw explore an unpublished report involving a prominent politician. Price and Maroun fight an uphill battle when their only credible witness is currently awaiting trial for another heinous crime.

When a public defender is murdered, Cosgrove and Shaw are surprised to find Price at the crime scene. His involvement in the trial compromises the case.

When a young woman dies a slow and painful death following an untreated infection, Cosgrove and Shaw suspect she was under the influence of a powerful cult. Price and Maroun put pressure on its members to find the cult’s true mastermind.

Cosgrove and Shaw investigate the murder of a family physician whose outspoken politician wife suspects she was the intended target. Price and Maroun’s case hangs in the balance when the defense calls one of the doctor’s young patients to testify as a witness

When a respected businessman is found murdered, his surprising connection to Cosgrove’s daughter helps the police make a break in the case. Price and Maroun disagree on how to proceed at trial when the defendant’s age brings up legal precedent they must follow.

Cosgrove and Shaw suspect an art dealer was murdered but can’t make an arrest until they locate her body. Price and Maroun must go to trial with a circumstantial case and a suspect with unlimited resources. The squad celebrates a birthday.

• Cosgrove celebrated his 50th birthday on the squad.

After a senator is gunned down at his daughter’s wedding, McCoy pushes for a severe sentence and squares up against a formidable defense attorney, his own daughter. Price aims to stay neutral but can’t help but empathize with the defendant over a shared trauma.

• This is the 400th episode with Sam Waterston.
• Final appearance of Jeffrey Donovan as Detective Frank Cosgrove.