TEXT: 1: EXT. MOUNTAIN RANGE (An icy mountain range where the peaks are covered in snow: the TARDIS nestles on a small plateau. SUSAN and BARBARA, both wearing warm coats, come out of the TARDIS and walk towards where there is in a large indentation in the snow. SUSAN kneels next to it and BARBARA joins her to examine their find. It is unquestionably a footprint, but it is of enormous size. SUSAN looks perturbed...) SUSAN: It must have been made by a giant. (Behind them, snow has already started to collect on the ridges and panels of the TARDIS. There is a cold wind blowing.) [SCENE_BREAK] (IAN, still wearing his large Ulster coat, emerges from the TARDIS. The DOCTOR is with him, breathing with difficulty in the thin mountain air. As the DOCTOR rests, SUSAN points out the footprint to IAN.) SUSAN: What do you make of this? (IAN also kneels with them and examines the footprint.) IAN: Well, it could be a perfectly ordinary footprint, Susan, and the Sun's melted the edges and made it look a bit bigger. (SUSAN hadn't thought of that...) SUSAN: Oh... (IAN turns back to the DOCTOR who is looking somewhat uncomfortable.) IAN: You all right, Doctor? DOCTOR: Yes...ah, a little bit out of breath. (Coughs.) Oh, that's quite understandable. After all, we're several thousand feet above sea level. SUSAN: Do you know where we are, then, Grandfather? DOCTOR: (Boastfully.) Well, I directed the ship towards Earth and it looks as though I've been successful! (SUSAN points at the footprint.) SUSAN: But what about that? DOCTOR: That? (Irritated.) Oh, I can't see anything without my glasses! Anyway, I don't like this place! You'll have to excuse me - I've got a lot of work
SUMMARY:
Missing episode Arriving in Central Asia in 1289, the Doctor and his companions join the caravan of the famous Venetian explorer Marco Polo as it makes its way from the snowy heights of the Pamir Plateau, across the treacherous Gobi Desert and through the heart of imperial Cathay. Having witnessed many incredible sights and survived a variety of dangers, they arrive at the mighty Kublai Khan's Summer Palace in Shang-tu, where the Doctor strikes up an extraordinary friendship with the now-aged ruler. They move on at last to the even more sumptuous Imperial Palace in Peking, where the travellers save the Khan from an assassination attempt by the Mongol warlord Tegana - supposedly on a peace mission - before departing once more in the TARDIS.