Troubled Water - Episode 1

Are we running out of water? James Gallagher is finding out from the comfort of his loo.

• 28 mins

The New Nomads

As property rents spiral, life on the road is attracting a new generation.

• 30 mins

Analysis - Lessons from the Vaccine Task Force

What are the lessons from the success of the UK's Vaccine Task Force?

• 29 mins

All Work and No Homes

Highland businesses can’t find staff due to the rent crisis, Pennie Stuart asks why.

• 29 mins

Princess - Leila Pahlavi

Comedian Shaparak Khorsandi and author Andrew Scott Cooper discuss Princess Leila Pahlavi.

• 35 mins

Magic Consultants - Episode 1

Adam Shaw peeks behind the curtain of the $billion management consultancy industry.

• 15 mins

The Truth Police

Meet the outsiders detecting fraud, malpractice and incompetence in science.

• 28 mins

Buying a British Dad

Fake fathers: the immigration scam that is hiding in plain sight.

• 28 mins

Is Psychiatry Working? - Anxiety Special

Anxiety: why do we have it, and how can we control it?

• 28 mins

Supersenses - Episode 1

Ben Garrod sees things that humans can’t, and explores extending our senses of perception.

• 29 mins

Does the Irish Republic Want Reunification?

Rising taxes, changes to flags and anthems. It’s more complicated than it seems.

• 29 mins

The Boy in the Peking Hotel

A London schoolboy's terrifying adventures in Chairman Mao's China

• 29 mins

Searching for Cosmic Dust

A jazz musician becomes a cosmic dust hunter.

• 29 mins

What Are the Railways For?

The railways are soon to be reorganised, but what are they for?

• 28 mins

Windrush: A Family Divided - Episode 1

Robert and Jennifer Beckford argue the pros and cons of Windrush 75 years on.

• 28 mins

The Fast Furniture Fix

Venetia La Manna explores the rise of fast furniture, asking if and how it can slow down.

• 29 mins

Brexit: A Guide for the Perplexed - Movement of People

What’s happened to migration since the UK left the EU?

• 15 mins

Yeti - Episode 1

Two yeti enthusiasts search for the mythical creature to find out if it really exists.

• 28 mins

Fever: The Hunt for Covid's Origin - Episode 1

As a deadly new virus starts spreading in Wuhan, China, so do rumours about a lab there.

• 29 mins

The Trouble with Sheep

Upland sheep are under fire - Charlotte Smith investigates what the future holds.

• 28 mins

An Almanac for Anxiety: In Search of a Calmer Mind - Episode 1

Exploring how interacting with the natural elements can improve mental wellbeing.

• 15 mins

BFFs: A Life Built on Friendship

Should friendship, rather than romance, be the cornerstone of life?

• 28 mins

Bug in the System: The Past, Present and Future of Cancer - Episode 1

Dr Kat Arney explores cancer through an evolutionary lens. Is it really a new disease?

• 29 mins

Archive on 4 - The Holy Blood

The unexpected origins of a global conspiracy theory... in the vaults of the BBC.

• 57 mins

Lego Overboard

Five million pieces of Lego are washed overboard. Meet the beachcombers looking for them.

• 28 mins

Memorial No More? A History of Russian Forgetting

Nobel prize-winning, on trial and hated by the Russian State. The story of Memorial.

• 29 mins

The Great Replacement

Raffaello Pantucci explores the Great Replacement theory fueling far-right recruitment.

• 37 mins

Hoax - The Planted Plants of Rum

Could the Isle of Rum miraculously have escaped the Ice Age? Tori Herridge investigates.

• 14 mins

Redeeming Ricky

Ex-offender Ricky has a deeply troubled past. And now he's set to help others like him.

• 28 mins

How Safe is Maternity Care?

Krupa Padhy asks how safe are our maternity services.

• 37 mins