1. The Rescue - Arriving on the planet Dido in the late 25th Century, the time travellers come upon a crashed spaceship from Earth. Its two occupants are living in fear of a creature called Koquillion, but everything is not as it seems 2. The Romans - The time travellers are enjoying a rare holiday, staying at a villa not far from Rome in the year 64 AD. The Doctor soon becomes restless and sets off to visit the city. Having been mistaken for the famous lyre player and asked to perform at the Emperor Nero's Court, the Doctor has to devise ever more elaborate schemes to avoid revealing that he cannot actually play the instrument.