An award-winning Chinese American high school science student is killed. Evidence points to the jealous family of one of the student's high school competitors.

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.

New assistant DA Abbie Carmichael aggressively investigates an infant's death and helps uncover a conspiracy involving a Russian adoption agency, gravely ill children, and an unethical doctor.

A prep school headmaster is accused of murdering his school's admissions director after overruling her on a controversial admissions selection.

The investigation into the death of a conservative talk show host leads to a stalker who claims to be having an affair with his wife. McCoy suspects that the wife manipulated her into killing him.

An investigation into the death of a 17-year-old boy leads Lupo and Bernard into the world of a fundamentalist Mormon sect, its polygamist leader, and one of his wives who is trying to get away from him.