The squad investigates the drive-by shooting of teenager Carl Nelson, a witness to a murder. Carl was scheduled to testify at a hearing to prove that convicted killer Gerald Curtis was not the person who did the shootings. The boy had given a videotaped deposition to defense attorneys two weeks previously, and the DA now sees both his previous conviction and the hope for any new conviction going down the drain. Deputy Chief Johnson finds Carl's involvement in the Curtis case to be just a little too contrived and investigates a local school's civics class and their attempt to set Curtis free. When Assistant Chief Pope's wife berates Brenda in the squad room, the team finally learns of their previous relationship.
—garykmcd