A riot at an immigration rally ends in murder, and the political climate causes McCoy to assign a special prosecutor increasing tensions at the office.

When a young woman is found dead in her apartment, a few tell-tale signs quickly lead Detectives Cyrus Lupo and Kevin Bernard to believe that the killer was not after her wealth.

Detectives search for an anonymous blogger who has posted plans to blow up a school. Lt. Van Buren struggles to keep her personal issues private.