In the Sandleford warren, Fiver, a young runt rabbit who is a seer, receives a frightening vision of his warren's imminent destruction. When he and his brother Hazel fail to convince their chief rabbit of the need to evacuate, they set out on their own, accompanied by nine other rabbits who choose to go with them. The first challenge in the small band's search for a new home comes immediately, as they are forced to elude the Owsla, the warren's military caste, who believe they are trying to spread dissent against the chief.