Tough, rough and downright dangerous. Journey into the world's most hardcore places.
Michaella’s Ibiza dream becomes a nightmare as she falls into an illicit world of drugs.
Louis meets the young and inflammatory figures of the modern American far right.
Ashley is in Brazil to meet young men living in some of Rio’s most dangerous favelas.
A chance encounter on a night out turns Karl’s Dubai dream into a living nightmare.
How a local community in Birmingham has been impacted by nitrous oxide.
Police tackle a county lines gang trying to take over the supply of drugs in rural Devon.
For one week, Reggie Yates eats, sleeps and works alongside the inmates of a Texan jail.
Fresh out of prison, three young people struggle to adapt to life on an electronic tag
Louis Theroux embeds himself in an American community devastated by heroin abuse.
James's attempts to recover his stolen identity unearth a shocking web of organised crime.
Idris Elba seeks to understand the knife crime crisis and how to bring it to an end.
Idris and the coaches meet their Fight School intake and conduct a rigorous fitness test.
Mobeen Azhar investigates rumours of a scam involving a student who handed out cash.
Howard is smuggling a huge load of cannabis into the US. Will he cash in or get caught?
Journalist Tir Dhondy meets the gang members behind the rise in luxury watch theft.
Sixteen-year-old Elliot embarks upon a life of fraud.
Zara McDermott follows the money, the crime and the big players on the party island.