A deadly virus plagues Boston and could spark a sweeping public-health scare. Meanwhile, Bug grows concerned that a pregnant Lily, who can't take medication, may contract the virus.

Jordan joins forces with Woody to scrutinize the slaying of a pregnant woman---and to find the baby that was missing from her womb. The case turns more disturbing when Jordan makes a pivotal mistake, impacting the investigation. Meanwhile, Macy has his hands full guiding a morgue tour for a group of juvenile delinquents.