Thomas and his bionic dog McGrowl investigate when it becomes obvious that something is not quite right at Hiram Biddle's new obedience school for dogs.
McGrowl, a bionic superdog, is invited, along with his boy Thomas, to visit his original owner Edwina Tuttle, and finds himself on a wild goose chase, courtesy of the evil Milton Smudge.
Presents three stories addressed to dogs and written from a dog's point of view, covering such topics as going to the vet, making friends with a rocklike creature, and getting a bath.
Sold in financial desperation to a wealthy duke in the far north of Scotland, a collie undertakes a 1000-mile journey in order to be reunited with her former master in Yorkshire.