The Doctor answers a distress call from Victorian England which then brings him back to Space Station Nerva. But he returns to the space station at a point in time before it launches into space.
To continue Leela's education, the Doctor promises to take her to the famous Morovanian Museum. But the TARDIS lands instead in a quiet English village, where they meet the enigmatic collector Harcourt and his family.
Britain. The height of the Roman occupation. The Doctor has brought Leela to ancient Norfolk to learn about her ancestors - but has no idea how much of an education she is going to get.
The Doctor and Leela find themselves in the middle of London at the time of a new energy crisis. The GlobeSphere Corporation seems to have all the answers - but several thousand protesters beg to differ.
When the Doctor and Leela arrive in the wilds of Derbyshire, only to get caught up in the hunt for a missing girl, they soon discover that the legend of the Worm is very much alive - even now, in 1979.
The first time the fearsome Kraals attempted to take over the Earth, with the help of their android agents, things didn't go quite according to plan - thanks to the time-travelling alien Doctor and his allies at UNIT.
