Abby and Carter travel to Oklahoma to rescue Abby’s mentally ill mother and bring her back to Chicago. In Chicago, Maggie suffers from a sleeping pills overdose. At County General,…

Melinda tracks down a ghost who is targeting girls on a social-networking Web site.

Don and his father-in-law cross paths. Meanwhile, Peggy is in search of a new roommate; and a rich new client is excited to be doing business with the firm.