McCoy and Kincaid clash over the death penalty as McCoy prosecutes a man who murdered an undercover cop during a drug bust.

McCoy finds himself battling the Navy and the office of the Judge Advocate General as he tries to prosecute a female pilot accused of murdering her married lover after he tried to break off with her.

The focus of the case returns to a politically influential family and, during the course of the trial, McCoy finds the powerful matriarch to be a formidable opponent.

The crossover starts on Law & Order: Special Victims Unit S01E15 Entitled (I).

Detectives Briscoe and Green probe the strangulation of a college coed who moonlighted as a stripper, and while they believe a pair of drug-dealing skinheads committed the murder, they struggle to determine the motive of the strip club owner who paid them for the hit. However, as they work their way up the ladder of complicity, the cops learn that the slaying is keyed to an insider trading scam that forces Assistant D.A. McCoy to connect a former porn star with a businessman.

A woman's murder leads the police to discover the actual target was a reporter who did a story about improprieties in a recent senatorial election. Carmichael can't get the reporter to reveal her sources for a story that contains allegations that the vote was fixed and ballots tampered with, even though the reporter's life is at risk. Without the source, McCoy and Carmichael have a difficult time making a case against the Senator, who they believe has ties to the mob and ordered the hit on the reporter. The case hinges on 2000 missing ballots from the vote that were stolen by the mob. Once the ballots are found, there is a big court battle about whether or not the ballots should be counted. McCoy believes that the ballots will show Benton's motive for ordering the hit, but an appellate court won't allow it, so their case is virtually dead. In the end, McCoy is able to convince the reporter to reveal her source and have him testify against the senator.

The hit-and-run death of a popular high-school student leaves the detectives suspecting the girl's father was the real target. When evidence reveals that the death was possibly a random killing, they are able to track down their suspect to his apartment. However things get complicated when their killer is murdered, and the person who committed the crime happens to be the victim's mother.

It's a race against time as the detectives go on the hunt for a sniper whose victims are shot in broad daylight.

The police and prosecutors investigate the connection between an award-winning songwriter and the young woman found murdered in his home to discover who would profit by her death at his hands.

A decorated Gulf War veteran grief-stricken over the Afghanistan combat death of his son murders an anti-war protester, claiming at trial that he acted under extreme emotional distress.

An Iraqi immigrant who murders a former military policewoman in retaliation for torturing her brother at Abu Ghraib prison claims that she is covered as an enemy combatant under the terms of the Geneva Convention.

When the investigation into the contract killing of a jeweler uncovers his plan to roll over on his Russian mob connections to a federal prosecutor, as well as an unhappy wife whom he refused to divorce, McCoy must determine who financed the hit.

Fontana and Green arrest a fellow student after a young man is murdered, but McCoy faces a tough adversary when he tries to prosecute the crime.