fern. — Season 4
Season 4 of fern. currently airing in 2026.
About this season
Season 4 of fern. currently airing in 2026.
Episodes (21)
1. How Cocaine Is Destroying Europe
Aired 4 January 2026 • 37 min
2. Why Otto Warmbier Didn't Survive North Korea
Aired 11 January 2026 • 37 min
This is the real story of Otto Warmbier and why the version most people remember may not be true.
3. The $1 Billion Coca-Cola Machine
Aired 20 January 2026 • 16 min
This soda fountain isn’t just serving you a drink. It’s quietly collecting your data — and Coke will profit from it tremendously.
4. Did McKinsey Ruin Disneyland?
Aired 25 January 2026 • 30 min
How did the "Happiest Place on Earth" become a dangerous nightmare?
5. How the Secret Service Actually Works
Aired 5 February 2026 • 27 min
Who are the people protecting the President? How do they prepare for the unthinkable, and what happens when everything is on the line?
6. The Assassination That Humiliated Hitler
Aired 15 February 2026 • 19 min
This is the story of how Reinhard Heydrich, the most dangerous Nazi, Hitler’s “man with the iron heart”, was assassinated.
7. The Most Mysterious Drug in the World
Aired 27 February 2026 • 36 min
This is dimethyltryptamine, known as DMT – arguably the world's strongest psychedelic drug.
8. How Iran’s Leader Was Killed
Aired 2 March 2026 • 14 min
This is how the Israeli and U.S. attacks on Iran unfolded - how the country’s leader was killed, and what has happened since then. By the time this video is published, new details may have emerged.
9. The Strange Attack on Flight 103
Aired 9 March 2026 • 28 min
This is the story of the Lockerbie bombing, one of the deadliest and most mysterious plane crashes in history.
10. Why everyone hates Lego now
Aired 14 March 2026 • 30 min
LEGO went from being a family favourite to a multi-billion dollar empire – why do so many people suddenly hate it?
11. The Bank Heist of the Century
Aired 22 March 2026 • 22 min
A helicopter, a bomb and millions in cash. This is the story of the Västberga heist - one of the most spectacular robberies of all time.
12. The Most Dangerous Job in Crime
Aired 29 March 2026 • 22 min
This is the insane, brutal world of Europe's coke runners.
13. How Cops Robbed the Dark Web King
Aired 5 April 2026 • 24 min
A hunt for Dread Pirate Roberts, thousands of stolen Bitcoin and a scapegoat that almost took the fall. This is the story of the cops who robbed Silkroad.
14. Who Will Rule North Korea Next?
Aired 12 April 2026 • 16 min
This is the story of Kim Ju Ae, the girl who may rule North Korea one day.
15. The Tragic Story of the Air India Survivor
Aired 19 April 2026 • 21 min
What really helps you survive the extremely unlikely event of a plane crash.
16. Facebook's Most Dangerous Product
Aired 26 April 2026 • 21 min
This is the story of Onavo.
17. The World's Deadliest Company
Aired 3 May 2026 • 30 min
This is the story of the world’s deadliest company: CNTC-STMA. A look into a core part of Chinese state economics and at the devastating effects of a state-sponsored public health crisis.
18. The CIA's Most Valuable Spy
Aired 10 May 2026 • 31 min
This is Operation Rubicon. One of the biggest intelligence coups of the 20th century.
19. The Hunt for America's Weirdest Killer
Aired 18 May 2026 • 41 min
This is the story of the infamous Zodiac killer. A mysterious serial murderer who made himself larger than life – and was never caught.
20. The Insane Story of Serbia‘s Human Slaughterhouse
Aired 24 May 2026 • 26 min
This is the story of one of Europe’s most notorious crime networks and their human slaughterhouse; their alleged ties to Serbia's elites; and an ingenious takedown by relentless investigators.
21. We Investigated a New Designer Drug
Aired 3 June 2026 • 29 min
These are Nitazenes, a highly potent but largely unknown class of synthetic opioids that are quietly entering the European drug supply.