Six years ago, viewers met the Dr. Phil Family " an all-American family struggling with their pregnant teen's decision to raise her baby or place it for adoption. Dr. Phil worked closely with Alexandra, who was 15 and pregnant, mother Erin, father Marty and 13-year-old sister Katherine, to get them through the challenging times. Now, a new crisis has them asking for Dr. Phil's help again. Youngest daughter, Katherine, now 18, had dreams of going to Harvard and becoming a lawyer. Recently, she got tangled up with the law, and her future is on the line.

Find out how Katherine's downward spiral began.

Dr. Phil sits down with the youngest member of the family to understand her side of the story. How does she explain her predicament? And, find out her real feelings about her boyfriend.

"What are you doing in a car with people who are selling stuff that they've stolen?"

Find out what else Katherine is doing that may land her in jail.

Erin joins Dr. Phil and Katherine, and Mom and daughter share an emotional moment. And, find out what Katherine's boyfriend told her during their last visit.

Can Dr. Phil get through to Katherine?

Erin reveals a little detail that has Dr. Phil extremely concerned. 

Where did Katherine get the bruises? Will Katherine's boyfriend agree to Erin's interrogation? Find out, and see a shocking update about Alexandra.