Caver Vernon Unsworth helped coordinate what became known as 'the rescue of the century' when 12 Thai schoolboys and their coach became trapped in the Tham Luang caves in Northern Thailand last year. It took 17 days to get them all out but they did it - Vernon describes the moment the boys and their coach were all brought out alive.

Presenter: Jo Fidgen

Producer: Mariana Des Forges

Image: Caver Vernon Unsworth in Thailand's Tham Luang caves

Credit: Vernon Unsworth