Kal brought the First Doctor to the tribe, claiming he was able to make fire. Hur understood as well as her mate the urgency of learning this secret from the old man and his young friends before Kal could do so. When Hur suspected Old Mother planned to kill the strangers before they could make fire, she was quick to alert Za. When they learned that the old woman had instead helped the strangers escape into the forest, Hur convinced Za that they must recapture them, despite the many dangers which lurked in the night.