A four-month-old border collie gets carried away during a first taste of sheep herding, while two seven-month-old Siberian huskies undergo training for competitive sled racing in Gloucestershire - without any snow to be found. On a farm in Fife, a litter of springer spaniel-poodle crosses discover the world around them, while a city-dwelling dog savours a meal made to build muscle.

Two puppies are trained to jump in and out of helicopters so they can work in the African bush, tracking down poachers hunting rhinos and elephants for their horns and ivory. In North Wales, a border collie puppy learns the basic skills of sheep herding, including judging distance and self-control, and a deaf dalmatian cross learns how to sense movement through the ground and air.