Inside the Inferno starts this Sunday on BBC 2

At the height of the worst wildfire season in a decade, Kate Humble and Simon Reeve travel to New South Wales, Australia to discover how the 70,000-strong Rural Firefighting Service contend with as many as 100 fires a day.

Simon and Kate explore why wildfires in Australia are so frequent and hard to control, unlocking the surprising secrets of fire behaviour with leading scientists working to help those on the frontline.

Wildfires 2014: Inside the Inferno starts this Sunday on BBC 2 at 9pm