Our story centers on a strange and puzzling case: A murder plot, involving a dinner party for six. A gun with a silencer. A rented boat. And waters swimming with sharks.

Talk about love at first sight. The couple in tonight's story decided to marry the day -after- they met! Together for more than 20 years, they turned out to have one of those legendary marriages that everyone envied. Or so it seemed.

In July of 2003, 25-year-old U.S. Army Specialist Richard Davis disappeared after celebrating his homecoming from Iraq with four army buddies. Nearly four months later, the four soldiers who were last seen with Davis were arrested.

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.

Can you imagine being happily married and still dating someone else... with your spouse's consent? There are half a million Americans practicing polyamory, and Lisa Ling meets three families who are pushing the limits of love, commitment, and family.