He tells her that she will be sent to France as a secret agent, and if she's caught, she's going to be shot.

I'm Helen Obalam Carter, and this is history's secret heroes, where I shine a light on extraordinary stories from World War II.

What they wanted was someone to get themselves arrested and sent to Auschwitz.

Tales of deception, an incredible acts of resistance and courage.

She was a born soldier.

She's a freedom fighter in its widest sense.

The brand new series of History's Secret Heroes.

Listen first on BBC Sounds.

Welcome to a place that is astonishing.

Nature in these islands, if you know where to look, can be extraordinary, dramatic and beautiful. It rivals anything I've seen elsewhere. It's not far. It's home.

The distinctive voice of Sir David Attenborough, introducing the BBC's Wild Isles programme,

a nature series which really shines a light on the wonders of British wildlife.

I'm Rachel Stewart, and in this episode of Scotland Outdoors,

I speak to producer Alistair Fothergill, who not only played a leading role in creating this series,

but he's also worked with Sir David on many other high-profile nature documentaries over the years such as Blue Planet.

Alistair is used to travelling the world, so I started by asking him why he wanted to make a nature programme right here.

I was very lucky to, as you said, to do the Blue Planet, Frozen Planet, Planet,

Planet Earth series.

And I always believe that there was the opportunity to do a series of that quality about the British Isles.

And the challenge there is a financial one, actually, because if you think of series like

Blue Planet, it's sold to over 190 countries worldwide.

And it's those foreign sales that, you know, make up most of the budget.

...