Suffering through searing pain and delirious illness in frigid, makeshift conditions, Chloe Phillips-Harris, at the age of 25 years, summoned every ounce of determination to brave the world's most gruelling horse race - the Mongol Derby. This 1000-kilometre endurance race across the wild steppes, desert and mountains of Mongolia - a competition with no marked course, no support team, that requires riders to switch horses every 40 km - saw almost half the competitors drop out along the way, but Chloe persevered.

Fearless recounts Chloe's childhood growing up on a run-down farm in a remote corner of New Zealand, with the odds stacked against her, and shares her life-long dedication to animals that has led her to train wild stallions and help save neglected working animals, travelling to some of the most remote and diverse places on the planet - all of which prepared her to overcome unimaginable challenges during a ride like no other.