What does it take to improve the lives of millions of people? The late Fred Hollows knew. He was known across the globe for his groundbreaking work in disrupting the global medical establishment, and his legacy lives on among the doctors he inspired. His most famous student - Dr Sanduk Ruit - has helped bring sight to over 125,000 people and trained thousands more doctors. In the process, he has directly improved the lives of millions of people. But what does it take to achieve transformation at this kind of scale?

What would you do if someone wanted to bulldoze an oil pipeline through your country, threatening not just your land, but your water and air? And what if the nation backing them had a history of playing dirty? That's the situation the people in this episode found themselves in - the battle over building an oil pipeline in Standing Rock in South Dakota, USA. Should they take the high road? Or respond in kind?

What would you do if someone wanted to bulldoze an oil pipeline through your country, threatening not just your land, but your water and air? And what if the nation backing them had a history of playing dirty? That's the situation the people in this episode found themselves in - the battle over building an oil pipeline in Standing Rock in South Dakota, USA. Should they take the high road? Or respond in kind?

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction

What would you do if someone wanted to illegally concrete over your local park, and build an apartment block on it? And what would you do if the authorities supported the illegal construction? This episode looks at how to organise genuine opposition in a place where the one thing they hate is genuine opposition - how a small protest against the destruction