The discovery of a hastily buried newborn behind a motel leads Falsone and Stivers to a teenage couple, Debbie Straub and Craig Halpern. Although both of them insist that the baby was stillborn, the autopsy points to homicide. The case brings Mike Kellerman - now a private investigator, hired by Debbie's parents to clear her name - to the squadroom in search of information. His arrival rankles most of the squad, and Gee orders Falsone and Stivers to tell him nothing. After Danvers gets indictments against Debbie and Craig, Kellerman advises the Straubs not to bail their daughter out; soon afterward, she calls home and offers to testify against Craig.