Take a trip to the world's largest hospital devoted solely to treating elephants: the Elephant Hospital in Lampang, Northern Thailand, which cares for over 100 sick, injured or neglected animals each year. With unique access to the daily challenges faced by the vets and volunteers on site, this is a heart-warming series full of uplifting, extraordinary and unexpected stories – whether that's treating an elephant with cancer or fitting a prosthetic leg to one that has lost a limb after standing on a land mine.