Horizon Season 56 Episode release dates & where to watch

1. We Need to Talk about Death

Dr Kevin Fong makes a personal journey through the moral questions about death that face not just the medical profession, but each and every one of us.

2. Britain's Next Air Disaster? Drones

In the wake of the Gatwick drone crisis, high-risk specialist Aldo Kane investigates the threat drones pose to UK skies and tests the new technology we can use to keep ourselves safe.

3. The Honest Supermarket: What’s Really in Our Food?

We spend 190 billion pounds a year on groceries, but can we trust our supermarkets to tell us the truth about what we’re buying? Dr Hannah Fry and Priya Tew investigate the food we eat.

4. Inside the Social Network: Facebook's Difficult Year

Following the teams inside Facebook, revealing a hidden technological playground. The film tackles difficult questions, like how our data is used, and also shows how Facebook works.

5. The 250 Million Pound Cancer Cure

Following the NHS as they start to implement proton beam therapy, an advanced but expensive cancer treatment, as well as following as the first children awaiting the lifesaving treatment.

6. Cannabis: Miracle Medicine or Dangerous Drug? Finale

At a pivotal moment in the history of one of the world’s oldest drugs, Dr Javid Abdelmoneim investigates the latest medical and scientific research into the effects of cannabis on the brain and body.