A robbery that involved two fatalities leads to the discovery of a long-running case of tampering with drugs. Goren and Eames have to figure out a way of catching a pharmacist (Stephen Tobolowsky) who has been diluting cancer medication without using the exhumated bodies of patients who had been given the medicine.

The detectives are called to investigate the adult daughter of a retired officer which takes them to a case of terrorism involving someone she knew that includes a shipment of explosives.