Oprah Winfrey interviews Michael Singer, author of "The Untethered Soul." In his first-ever television interview, Singer sits down with Winfrey to talk about how we can all find a greater sense of inner peace and spiritual freedom.

Acclaimed actress Shirley MacLaine discusses her journey to spiritual enlightenment, and encourages viewers to search for their own higher selves.

In a journey to Centennial Park, Arizona, Lisa Ling visits one of America's most closed-off communities, and is granted unprecedented access to a group of modern-day men and women who are living in plural marriages - and professing to love it.

An estimated 15 million Americans are active in the "swinger" lifestyle. From house parties in suburban Arizona to swingers' clubs in Nashville and workshops in LA, we explore what's at stake when couples test their sexual boundaries and learn to swing.

In this episode, Lisa Ling takes a close look behind the staggering statistics of incarceration in the African American community, and meets three men and families hoping to break the cycle once and for all.

For the first time in U.S. history, our youngest generation is expected to live a shorter life than their parents as a result of childhood obesity. Lisa Ling meets families who are struggling to help their children lose weight in order to survive.

In the nation's heartland, one leader cries out with a radical message of spiritual martyrdom. Lisa goes inside this new religious movement where members claim to hear the voice of God, and explores what the future holds for its followers.

When we send our children to shool or after-school programs, we entrust their lives to supposedly trustworthy people. In this episode, Lisa Ling examines stories of stolen innocence, and the pattern of inaction that can create a lifetime of pain.