The BAU hunts a killer who has hidden numerous victims in the walls of a South Carolina home. The trail of clues dates back 20 years.
Rush and her colleagues must use their unique expertise and interrogation skills to solve a killer's demented puzzle and save a young boy's life. In the course of one night, the team members are pushed to their wits' ends trying to crack the code and rescue the boy, who has been left to die at an undisclosed location.
When the ladies are given V.I.P. tickets to Elvis Presley's Graceland, Julia's eyes are opened to the powerful role Elvis played in many people's lives.
A veterans' support group becomes a lifeline for Commander Michaels, who continues to deal with post-traumatic stress disorder. Meanwhile, she discovers that her son David came into the emergency room due to an accident.
