What's the story?

Flint.

I'll need more information.

It is a documentary film charting one of the worst man-made disasters in US history. As the birthplace of General Motors, Flint in Michigan was once a prosperous city. In 2013, a decision was made to switch the area's water supply from Lake Huron to the polluted Flint River in a bid to save money.

That didn't end well?

No. With brown water coming out of the taps, Flint residents started reporting worrying illnesses. A campaign was launched to get the water supply changed back. Montrose filmmaker Anthony Baxter spent five years documenting that fight.

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What did that entail?

Baxter arrived in Flint before the story began making headlines around the world. Support came from Hollywood star Mark Ruffalo – who features in the film – and narrator Alec Baldwin, who is seen visiting families in Flint.

What happened next?

Long after the news cameras had left, Baxter and his team remained in Flint and captured the fallout as trust in authority irrevocably broke down. Even after the water supply was changed back, the problems didn't end.

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According to a leading paediatrician, many children have been left with permanent damage to their brains and reproductive systems.

When can I watch?

Flint airs on BBC Scotland, Tuesday, 10pm.