Years ago, Shaun Smith was an enforcer for a major Liverpool crime family, waging war on a rival drug gang with extreme violence. After serving five years in prison for firearms offenses, he now tries to apply his hard-won skills legally, working as a debt collector in the northern town of Warrington.

Bare-knuckle boxing is resurging in the UK, becoming a modern bloodsport. Clive Martin embeds with fighters from all walks of life; the scene mixes honour, pride, and extreme violence. As the first US vs UK title fight in 150 years approaches, he explores whether violence drives these men or results from it.

A homemade drug called Krokodil is gaining popularity in Siberia, terrifying users with horrific effects that cause skin to become scaly, rot, and fall away. In this documentary, we explore why even many heroin users are afraid of this deadly drug and want nothing to do with it.

New Zealand’s isolation led to meth and novel drugs becoming popular, sparking addiction and gang violence. Rising crime threatened the country’s safety. A glam-rock musician named Starboy took on the drug war—and nearly succeeded.

Since “To Catch a Predator” ended, YouTube vigilantes have taken up the role. Dads Against Predators pose as minors online and confront men in public videos. Law enforcement warns this work should be left to professionals. This film explores whether they help expose predators or create more risks than they prevent.

The “world’s greatest sex hacker” teaches a hands-on course and answers questions about sex. He shares his journey from a “sexually insecure Asian immigrant” and explains why we should listen to him.

Why are more young men turning to Viagra? Obi, 24, investigates this “boner renaissance” and whether men his age should be using erectile dysfunction medication.

In Siberia, a self-proclaimed messiah leads 4,000 followers whose beliefs in UFOs and the end of the world grow increasingly extreme.

We embed with London’s Neturei Karta, a controversial ultra-Orthodox Jewish group that opposes Zionism and the state of Israel. In this documentary, reporter Milène Larsson goes inside the secretive community to understand their anti-Israel stance.

An underground trafficking network convinces poor Bulgarian mothers to sell their babies to wealthy Greek couples. The investigation exposes how the ring operates and the devastating impact on families.

Okinawa attracts millions of tourists as a tropical paradise. Despite this, it remains the poorest prefecture in Japan.

In Colombia, pink “cocaine” or “tucibi” is all the rage, from elite clubbers to cartel leaders. It’s pricier than white cocaine, has its own music genre, and fuels a new generation of “neo-narcos.” Cartels are now expanding production into Europe.