Episode 1
Levison and his guide, Malang, begin their trek in Afghanistan's Wakhan Corridor. Then, they head for the 5000-metre wall of snow and ice leading to northern Pakistan.
Episode 2
Levison traverses breath-taking scenery in northern Pakistan's mountain valleys. They meet tribes people and nomads before reaching the militarised frontier with India.
Episode 3
Levison arrives in Nepal and visits one of the country's national parks. It's home to tigers, rhinos and massive crocodiles, but animals aren't the only dangers he faces.
Episode 4
Following the car crash and a six-week recovery period in back in the UK, Levison returns to Nepal. Then, he heads towards Everest, Kathmandu and Bhutan.
Episode 5
Levison and his friend Binod reach Bhutan. They get a rare opportunity to experience the country's beautiful scenery, colourful festivals and historic monasteries.