Rose goes off on her first adventure with the Doctor who takes her 5 billion years into the future to view a cataclysmic event: the destruction of the Earth. They’re on an orbiting space platform with a groups of invited guests who seem to travel from one cataclysmic event to another. There are uninvited guests as well in the form of spider-like mechanical robots that seem to multiply at will and are obviously bent on causing destruction. The spiders soon dispose of the Steward and gain control of the orbiting platform’s mainframe. It doesn’t take long for the Doctor to figure out just which of the invited guests is behind it all.