The Doctor and Leela land in a jungle on a beautiful planet. Leela eats some of the local fruit, and the Doctor scolds her. Suddenly they hear something large approach. They hide and see a large four-legged animal. The Doctor approaches it and tries to communicate with it, but it runs away. They chase after it, to find it eating some bark from a tree. After this, it starts to speak to them in a strange language. Leela can understand him, but the Doctor cannot. Cain promises the Doctor that he and the remaining men will help to keep this planet secret.