after meeting the doctor's companions jamie and victoria, travers is convinced of the doctor's innocence. upon the discovery of killer, robotic yeti, travers fears for the real yeti but is temporarily suspected of controlling the robotic yeti himself. travers assists the doctor in defeating the great intelligence, the true controllers of the robotic yeti. he pursues what he believes to be a real yeti after glimpsing it as the doctor and his companions depart.