Horizon Season 58 Episode release dates & where to watch

1. Feast to Save the Planet

Gregg Wallace and mathematician Hannah Fry invite five special guests to a unique dinner party where they are scored on the environmental impact of every dish they choose.

2. The Secret Science of Sewage

Dr George McGavin and Dr Zoe Laughlin set up base camp at one of the UK's biggest sewage works to investigate the revolutionary science finding vital renewable resources and undiscovered life in human waste. Teaming up with world-class scientists, they search for biological entities in sewage with potentially lifesaving medical properties, find out how pee can generate electricity, how gas from poo can fuel a car and how nutrients in waste can help solve the soil crisis. They follow each stage of the sewage treatment process, revealing what the stuff we flush can tell us about how we live today, and the mindboggling biotechnology being harnessed to clean it, making the wastewater safe enough to return to the environment.

3. Dolly: The Sheep That Changed the World

The story of the scientists who created Dolly, the sheep that changed the world in this documentary, part of the Horizon series. This Horizon branded documentary tells the full story for the first time with never-before-seen archive, revealing how on a small Scottish farm, a handful of the world’s best genetic scientists worked in secret to crack the holy grail of life: cloning.

4. The Vaccine Finale

With unique access to five vaccine teams around the globe, this is the extraordinary inside story of the unprecedented quest to develop and make vaccines to fight Covid-19.