Dodo and the Doctor land on a planet that seems to be in an advanced state of decay. It smells bad, it oozes, and it looks rotten. The Doctor tries to get her interested in her surroundings, but she can't understand why he has come here. They encounter a creature that is somehow singing a mournful song, even though it has no mouth. The Doctor does something to the creature that seems to heal it, and it heads off down the path. Dodo and the Doctor follow, and the Doctor leaves Dodo behind.