The Doctor, working for the Time Lords, is interviewing an entity who has committed terrible crimes. The entity explains that, in his first experience with intelligent life, he was unable to establish contact, and the life eventually devolved into a primitive state, later followed by their sun's implosion. When he next encountered intelligent life, he was able to establish contact, but once again the civilisation decayed and the sun imploded. He concluded that some kind of infection was at work. He admits his guilt to the Doctor and hopes for redemption.