In the 4x4 is Vicky Balch, who lost her leg after the now well-publicised rollercoaster accident at Alton Towers in 2015. She's determined to restore her independence, but suffers an early set-back when the car's brakes fail. On the motorbikes are Louise Halvey, who has progressive hearing loss and must negotiate the chaos of Hanoi traffic; and marathon runner Charlie Lewis who convinced a surgeon to amputate his right leg following a snowboarding accident that for almost ten years had kept him in constant pain.
At the halfway stage of their epic journey through Vietnam, the group have reached Quang Tri Province, which saw the fiercest fighting in the Vietnam War. At the Linh Ung Monastery near Da Nang they help volunteers deliver meals to a local orphanage. But for Louise Halvey, who has progressive hearing loss, the pressure of socialising in a hearing group is taking its toll. Steve Brown is also struggling.
Part one of two. Following the critically acclaimed series Without Limits: Vietnam, and to mark the 2018 Invictus Games in Sydney, this observational documentary sees a team of injured British and Australian veterans - Martin Hewitt, Shaun Stocker, Keanie Trick, Matt Tolson and Dean West - embark on an extraordinary 1,000-mile expedition across Western Australia's remote Kimberley region with the support of HRH the Duke of Sussex. The team's route follows the Gibb River Road, an old stock route of mostly unpaved road. Spreading over Australia's entire north-western corner, the Kimberley is three times larger than England but with a population of less than 40,000.
Part two of two. The injured British and Australian ex-armed forces service personnel continue their expedition across Western Australia's remote Kimberley region. The team of wounded veterans travel East towards the sacred Bungle Bungle Range of Purnululu National Park, before their final challenge sees them embark on a two-day trek into the Purnululu National Park.