"...People spend all their time making nice things,
and then other people come along and break them..."
STORY PLOTLINE
The time travellers arrive in Australia in the near future and learn from a man named Giles Kent that the Doctor is the physical double of Salamander, a scientist and politician who has discovered a means of storing and distributing solar energy and thus ending starvation in a world ravaged by earthquakes, floods and the like.
Most people see Salamander as a hero, but Kent and others believe him to be establishing himself as a dictator.