The TARDIS lands in London on Christmas Eve, 1851 and almost immediately the Doctor hears his name being called. When he meets the woman shouting for him she fails to recognise him and continues calling until another man arrives and claims to be the Doctor and acknowledges the woman, Rosita, as his companion. 　　The Doctor then attempts to help the newcomer lasso a man-size dog-li...

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 ...