Lisa explores the social and economical forces behind HIV.

In this special episode, host Lisa Ling joins “ex-gay” organization Exodus International president Alan Chambers and a group of reparative therapy survivors as they engage in a face-to-face confrontation 40 years in the making.

Polyamorous couples are committed to non-monogamy. Lisa visits three polyamorous households – each of them pushing the limits of love, commitment, and family.

Lisa Ling explores two stories of stolen innocence and the pattern of inaction that continues to compromise our children's safety.

In a report about childhood obesity, Lisa Ling meets families who are struggling to help their children lose weight in order to survive.

Monogamy is the defining feature of almost all American marriages, but today more and more everyday Americans are choosing to leave the "vanilla" world behind and embrace their own unique brand of "negotiated monogamy." It's estimated that 15 million Americans are active in the Swinger lifestyle. From suburban house parties to exclusive nightclub gatherings, Lisa crosses the country to explore what's at stake with this non-traditional yet growing phenomenon.

Lisa Ling begins Season 2 by exploring homemade sex films on the Internet, and how the widespread availability of online pornography has affected Americans' sex lives and relationships.

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

Lisa Ling explores the challenges of living life on a list of registered sex offenders as she meets with ex-cons in Florida. "They're America's pariahs, pushed into the shadows," she says. Or, as one man living in a swampy campground with other offenders calls it, "the leper colony." Ling also meets a real-estate agent who finds more substantial housing for offenders who can afford it; and follows authorities as they arrest an ex-con accused of failing to register an address change.

Ling visits a faith healing revival in Fort Mill, S.C., run by controversial evangelist Todd Bentley. During the visit, Ling says she's challenged by what she thought she knew about faith.

"Can prayer make you straight?" Host Lisa Ling explores that notion as she observes some 1100 participants at a Freedom Conference sponsored by the evangelical organization Exodus International, which offers advice on combating same-sex attractions. "I have chosen to live my life through the filter of my faith," says Exodus president Alan Chambers, "not through the filter of my sexuality.

A report on plural marriage in the U.S. focuses on the polygamous community in Centennial Park, Ariz.