Dash and Plucky are best friends and live with the other animals-Fox, Vixen, Whistler, Adder and Sinuous- in White Deer Park. The animals are happy in their reserve when suddenly the animals start disappearing and it seems that their trusted Warden has something to do with it. Soon enough, Plucky disappears too. The situation gets worse when the reserve is invaded by thousands of rats with Bully as their leader. Meanwhile Dash follows a van into another enclosure and finds out where Plucky is kept. Plucky soon escapes by hiding in the Warden’s Land Rover, and soon joins the other animals in preparing for battle against the rats who killed their friends. The rats are soon defeated and White Deer Park is safe again. But to all the animals’ surprise, they find out that their park is bigger as the other enclosure is now ‘joined in.’