The investigation into the killing of the CFO of a baby food company leads Briscoe and Logan directly to the Russian mob and its head, who now goes by the name Steven Green. When they arrest the shooter, ADA Stone isn't above manipulating his situation to get him to testify against Green. However, since no one can be found guilty solely on the testimony of an accomplice to the same crime, he desperately needs another witness. Ann Madsen had business dealings with Green and can testify to having seen the shooter in Green's office the day of the shooting. When it come to actually testifying however she changes her story, obviously in fear of her life. Stone makes it quite clear she will go to jail if she doesn't tell the truth but it leads to tragedy and forces Stone to make a major decision about his future.

A man and a woman rob a nightclub and a deli, killing the owner. When they're caught, the woman claims she was forced to participate against her will.

Two feuding daughters of a department store owner are suspects in a murder investigation. Both have motive and connections to the murder weapon, but getting a conviction on either daughter could prove to be difficult.

A teenager who was shot in a drug deal gone bad claims to have been coerced into working as an informant for a corrupt narcotics officer.

A diamond broker's death may have happened because he was on the verge of exposing a powerful Swiss diamond concern's connection to "blood diamonds" mined in Sierra Leone.

An Afghani drug lord is implicated in a drug-related massacre in New York. However, prosecution is difficult because the government considers him an ally in the War on Terror in Afghanistan.