Mary tries to cajole a reluctant marijuana grower (and user) to testify against his former partners who are being prosecuted for the murder of a DEA agent six months earlier -- or else he and his family will be dropped from the WITSEC program and he'll be prosecuted for the murder. In the meantime, in the continuing fallout from the investigation of Brandi's possible drug possession and Mary's kidnapping, Mary is shadowed by a psychologist who will determine whether Mary can be returned to full status with the Marshal's Office.