Investigates Russian gender camps and Uganda's Hollywood; blowing up a bus for science.

Stories of surveillance featuring interviews with former CIA director James Woosley and journalist Lara Logan ("60 Minutes'').

Investigating the over-policed community of Gretna, La.; private companies exploit prisoners for profit; honey seekers pursue a unique high.

Death. I See Dead People; Happy Birthday, Hanford!; The Timbuktu Job.

Exploring ways Teddy Roosevelt would handle the bitterly divisive issues of today, including gun control, climate change and income inequality.

Exploitation threatens to destroy Africa's oldest national park, Virunga.

A team of elite climbers must each confront their personal demons on a 150-mile journey from the sweltering jungle to a remote peak in Myanmar.

Today, ISIS controls over a third of Iraq. The Kurds and their underdog army defend their home against the world's most feared and ruthless threat.

For many living creatures, including humans, eyes are an integral survival tool. Learn how eyes have also inspired incredible emerging technology.

Taking a look at what people are doing to reconnect with nature.