The time traveling Foot Doctor discovers that the Cyberons and Autons are ineffectually trying to invade the Earth yet again. Can he and a helpful salesman save the day or will his arch enemy The Licensor defeat him for good?

Trapped in an isolated cottage, Captain Cavendish thinks he is seeing ghosts. The only person who might understand and help is Kate Lethbridge-Stewart ... but when she arrives, she realises that Cavendish is key in a plot to summon the Daemons back to the Earth. With time running out, Kate discovers that sometimes even the familiar can turn out to be your worst nightmare.