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Dr Anti-vax

1. The fall

A British doctor sparks a global health panic about the safety of vaccines.

• 29 mins

Dr Anti-vax

2. The rock star

Andrew Wakefield becomes a superstar.

• 33 mins

Dr Anti-vax

3. The movement

RFK Jr emerges as a new figurehead of the anti-vax movement.

• 32 mins

Who Trolled Amber?

Introducing... Who Trolled Amber?

Alexi Mostrous investigates what happened to Amber Heard and who was responsible.

• 2 mins

Who Trolled Amber?

1. Missing evidence

Was Amber Heard the target of an organised trolling campaign?

• 36 mins

Who Trolled Amber?

2. Gold dust

The team travel to Florida in search of their first big clue.

• 31 mins

Who Trolled Amber?

3. Into the dark

The story begins to cross continents as the team find evidence of a global campaign.

• 36 mins

Who Trolled Amber?

4. Through the looking glass

The astonishing case of a teenage killer helps lift the lid on how bot campaigns work.

• 32 mins

Who Trolled Amber?

5. The special relationship

Could a nation state have deployed an online army to fight for Johnny Depp?

• 25 mins

Who Trolled Amber?

6. Public enemy

Johnny Depp’s maverick lawyer Adam Waldman finally comes under scrutiny.

• 40 mins

The Gas Man

Introducing... The Gas Man

In the late 1980s, Agent Bass is tipped off about a shipment of suspicious chemicals.

• 3 mins

The Gas Man

1. The Special Agent

Special Agent Dennis Bass receives a tip-off that will change the course of his career.

• 33 mins

The Gas Man

2. The Sting

Special Agent Bass concocts a plan to reach the Gas Man.

• 33 mins

The Gas Man

3. The Escape

The team persuades The Gas Man to step out from the shadows.

• 41 mins

The Gas Man

4. The Other Gas Man

Chloe makes a startling discovery about another chemical trafficker.

• 46 mins

The Gas Man

5. Truth Serum

What happened to The Gas Man when he arrived back in Germany as a fugitive?

• 39 mins

The Gas Man

6. Devil's Breath

Is the 40-year cat-and-mouse game nearly over?

• 37 mins