In the TARDIS, Vicki is reading a fairy-tale book. She prefers improving books, but the Doctor and Steven see the value of fiction. The TARDIS lands on an unnamed planet. On the scanner the travellers see rabbit-like robots. Vicki names them "Bunnoids". She and Steven head outside, but a Bunnoid enters the TARDIS and locks the door. Outside, Vicki and Steven are threatened by blue-skinned natives. The TARDIS crew take off, with Vicki and Steven retaining almost no memories of living out the story.