Melinda tracks down a girl who has been missing for 12 years and discovers a long-held secret.
Masters and Johnson prepare to publish their study; Virginia faces parenting struggles; Libby pulls herself out of a depression.
The book nears its release date; Masters takes on a high-profile patient; Virginia and Libby come to terms with their roles in Bill's life.
Masters and Johnson's book is released and, while reviews are positive, the public's response causes unease around the office.
Virginia's parents arrive unannounced; Masters takes on a promising fertility patient.