Number Six — along with the rest of the population of the Village — is subjected to a new mind-altering education technology called "Speed Learn" which can instil a three-year university level course in history over a television screen in just three minutes. It was invented and is "taught" by an avuncular individual known as "The Professor" who is nevertheless seen trying to escape from the Village along the beach at the episode outset. Number Six finds a tape recorder on the beach which he hides in the sand. He witnesses the professor being recaptured, who then proceeds with the education program which instils a detailed, but fairly sterile, set of data on "European history since Napoleon" into all Village residents' minds. Speed Learn is also apparently supported by someone known as "The General". Number Two tries to find the tape recorder, which he thinks Number Six has, but fails; he then quizzes Number Six on the lecture, and Six answers correctly as he had no knowledge of them before. After Number Two leaves, Number Six goes back to the beach to find the tape recorder, only to find that Number Twelve has it. Number Twelve agrees to help Number Six. On the tape the professor states that speed learn is an abomination and slavery, and that The General must be destroyed. Number Six discusses art with the Professor's wife, sketching her in a general's uniform. He searches her house, finding busts she has carved of him and Number Two, and smashes a lifelike effigy representing the sleeping Professor. Number Six fears that Speed Learn could eventually be used for mind control. Number Twelve assists him by giving him a set of passes and a pen that will play a message about the professor's confession. Before the next lesson is to be broadcast, Number Six infiltrates the projection room and installs his own message. He is detected and thwarted in this attempt, and the real message is broadcast. Number Six is interrogated and refuses to reveal the complicity of Number Twelve. Number Two claims that the General will know who his accomplice was. "The General" is revealed to be a sophisticated, experimental mainframe computer which has purportedly been programmed to be able to answer any question put to it. As Number Two is about to ask who assisted Number Six, Number Six says that there is a question that the General cannot answer. Number Two arrogantly accepts the challenge; when Number Six feeds his brief question into the General, the computer begins to smoke out of sheer consternation. Fearing the worst, the Professor tries to shut down the computer, and as it begins to overload, Number Twelve tries to save him. But The General self-destructs, killing both men in the process. A distraught Number Two asks Number Six what the question was. The General, and Number Two's plans, were destroyed by a simple epistemological trick: "Why?"
Reception
Chris Gregory believes the episode to be "memorable" and "highly melodramatic". He describes the ending as " well with the subtext of the series", but also say "the revelation that 'The General' is a powerful computer is a stock science fiction device." Alain Carrazé and Hélène Oswald compare the ending of the episode to the story of David and Goliath. The fact that the Prisoner defeats the General with a single word is like David killing Goliath with a sling. They describe the music used during scene involving the Prisoner, Number Two and the Professor's wife as "one of the strangest musical themes in the series".
