This film follows the story of giant pandas Tian Tian and Yang Guang, who arrived in the UK to great fanfare in December 2011. David Tennant narrates as Edinburgh Zoo's vet and head keeper travel to China to see how giant pandas are looked after in their homeland. Head keeper Alison also visits a remote panda reserve in Wolong to witness the efforts to reintroduce giant pandas ..秘密图纸电视剧