Kate Humble sets out to breed Welsh sheepdog puppies from her beloved pet Teg, and learns about the threat facing British herding dogs. A true Welsh sheepdog is a working dog, and so Kate sets out to train Teg to work in the traditional Welsh way. Along the way, she meets a team of researchers at the University of Aberystwyth, whose groundbreaking DNA research reveals some remarkable facts about the Welsh sheepdog. If Teg can produce a litter of healthy Welsh sheepdog puppies, she can play a big part in helping one of Britain's unique herding dogs survive for generations to come.
