Some time after leaving UNIT, Liz Shaw calls the Doctor to Cambridge University, where scientists are experimenting with time dilation. A device hurls them to the year 2014, and a meeting with Richard Beauregard, heir to the Beauregard estate.
"The Sunday Times top ten best seller. Thousands of lives have been saved by this spaniel. He is a best friend in dog's clothing. An RAF dog with his mossy feet firmly on the ground. A brave dog who has served his colleagues and his country with unstinting devotion. A dog in a million. This is the story of the partnership of Buster and Will, told by Will himself, describing how each came to save the other's life.