Welcome to the world of online sperm donation, where moms uninterested in sperm banks meet donors online. Here, Lisa Ling meets exceptionally-prolific donor Ari Nagel, father to more than 117 children, and seeks answers to questions posed by media, scientists, and strangers alike – what would motivate someone to do this? Is it even ethical? Who are the mothers that seek him out, and how will the kids turn out?

"Tiger Queens" is a road trip into the soul of post-Tiger King America, where the abuse and exploitation of tigers continues; Lisa Ling meets a group of passionate female journalists, activists, scientists, and conservationists that are working to shut it down.

In this episode, Lisa Ling explores serious mental illness and how it affects her home city, Los Angeles. She will meet those who are suffering as well as those who are fighting to help people in need.