A solo backpacking trip in Asia turns dark when a 23-year-old woman fails to return to her family in Colorado.

The Mountains

Sometimes the most beautiful places hide the darkest secrets.

True crime

Have you ever thought about whose job it is to track international fugitives, hunt child abductors, conduct espionage, or pull human remains from concealed mass graves? Everyday thousands of good and decent people work in these Dark Arenas. They’ve chosen professions that grapple with the grotesque, deal with the deviant, and dodge the dangerous.

NEW LIMITED SERIES: Dark Arenas

When two friends sitting on a bench in an Ohio park are gunned down in cold blood, the investigators responsible for solving they murders are left dumbfounded.

The Friends

One of the worst crimes to consume British headlines in 1986 leads authorities on a search for a killer who was in the thick of a murder investigation the entire time.

The Suspect

When an elderly couple on a romantic camping trip in the bushland of Australia vanished from their burned-out campsite, authorities quickly identify a suspect.

The Pilot

At the dawn of the 20th century, two brothers prospecting for gold hoped to find their fortune in the Northern region of Canada.

The Mountains

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