Over 70% of Americans believe the devil is alive and well, and there's a growing movement in churches to fight him head on. Lisa Ling visits ministries that practice deliverance: calling upon the power of Christ to cast out demons from tortured souls.

Three years ago, Lisa Ling explored the very private worlds of four different transgender people across America. Now she revisits each of them on their journeys of transformation—from the sex they were born, to the one they feel they really are.

Lisa Ling explores ADHD, one of the most disputed and misunderstood medical conditions today. In addition to joining three families in their journeys of diagnosis and treatment, she finally has the courage to ask: Could she have it, too?

Lisa explores the world of criminal informants, untrained civilians who perform undercover operations for law enforcement. By targeting the vulnerable, are police coercing citizens into risking their lives despite uncertain and often deadly circumstances?

Lisa explores the social and economical forces behind HIV.

Lisa examines the procedures that follow when a child is removed from their family.

Ling meets activists that are determined to end gun violence in Philadelphia.

Ling revisits a man who is paroled after being labeled a sex offender.

Lisa provides an update on teen moms from season two.

In the series finale, Lisa Ling visits those with missing loved ones.