3/6 Ian and Barbara find a temple in the middle of a hostile jungle.
2/6 In the city of Morphoton, the Doctor, Barbara, Ian and Susan are welcomed as guests.
BBC Television Service
1/6 The TARDIS lands on a remote island, surrounded by a sea of acid and are set a task.
7/7 Arriving at Kublai Khan's palace, the Doctor loses the TARDIS key to the Khan.