The Cambridge Spy ( TV story ) The Cambridge Spy was the sixteenth episode of series 1 of " K9 " and featured the first time travel adventure of the show . Synopsis . A freak accident engages the Space - Time Manipulator and Jorjie is taken back to 23 November 1963 . K9 and Starkey follow to rescue her and become embroiled in a spy - ring and a race against time to save Darius from never having existed . Gryffen enlists June ' s help to bring Jorjie back to their time and save Darius . Plot . At the mansion , Gryffen works on the space - time manipulator , K9 beats Starkey at chess and Jorjie looks at files from when the mansion was a police station . Jorjie is dressed in 1960s attire and is researching for a history assignment at school . She finds that in 1963 there was a Russia n spy ring in the district and the old station was the centre of investigations . Jorjie puts on VR goggles to do further research at the cyberpedia . The STM produces a ball of green energy . It hits Jorjie . She vanishes . K9 tells Starkey the quantum equaliser maintains the balance between space and time . Jorjie has been sent to a different time . Darius finds a newspaper dated 23 November 1963 with a picture of an arrested cat burglar . He spots Jorjie in the background and shows the team . In 1963 , a constable finds a confused Jorjie . When Jorjie tries to contact Gryffen , the constable takes away her communicator . A boy called William Pike , who looks exactly like Darius , tells the constable he ' s her brother . The constable takes them both away . Back in 2050 , Starkey decides to go after her and K9 joins him . Darius and Gryffen will stay in 2050 to manage the STM . In 1963 , Jorjie figures out William isn ' t Darius . The constable finds a folder in a car but is interrupted by the arrival of K9 and Starkey . He takes their communicator , but they escape . He finds another man with a communicator , puts him in Jorjie ' s cell and tells Bill to come with him for interrogation . The man introduces himself to Jorjie as Miles Barrington Smythe . In 2050 , Gryffen tells Darius to go through old newspapers looking for Jorjie . Darius spots a story about his grandfather , convicted for treason as one of a Russian spy ring . In 1963 , while the constable looks at the communicator , a man who looks like Thorne arrives . The constable and the man , whom the constable knows as agent Barker from MI6 , meet Bill in an interrogation room . The constable leaves and Bill and agent Barker square off . In 2050 Gryffen ascertains the past has been changed and Darius shouldn ' t exist . Darius fades away just before June arrives for Jorjie . Starkey and K9 lurk near the station , trying to work out a rescue for Jorjie . Starkey contacts Gryffen , who tells June what happened . He promises to get them back and explains to Starkey they must save Bill or Darius will not exist . K9 and Starkey rescue Jorjie and Miles and go after Bill . On the way to the interrogation room , K9 creates a distraction by playing an audio clip sounding like a car crash . Miles tells the constable that there has been a large car crash but the constable recognises him and runs after him clearing the way for K9 , Starkey and Jorgie to get to the interrogation room . In the interrogation room , K9 , Jorjie and Starkey arrive to save Bill . Barker threatens to have them all arrested . K9 blasts the wall . Barker allows them to continue . As Starkey tries to contact Gryffen , Miles arrives . Starkey tells Bill to escape , but he refuses to disgrace his family and stays to prove his innocence . Barker insists he ' s guilty and will go to prison . K9 decides to look through the document . It ' s written in Russian and there is a coded message . Based on a basic mathematical equation , the details of a spy network located in this area are revealed . This message is to a spy , instructing him to use his government employee card to access information . As Bill is not a government employee , it can ' t be him . K9 detects that an explosive has been triggered and shortly after everyone ducks the document explodes . Gryffen contacts Starkey . He has less then a minute . Bill is released and the team get back to their own time . In 2050 , Darius returns to existence and the others come through the STM . Later , K9 ascertains that no significant change to the timeline has occurred . In 1963 , Barker meets with Miles ( who is a Russian spy ) to discuss their close escape . Barker complains that Miles took his time setting the self - destruct and " the mechanical dog " almost revealed his name . Miles hopes the next time he passes material on to Barker , he ' ll take better care of it . Miles hopes that one day Britain will have a society like communist Russia . They leave the street . Story notes . Ratings . " to be added " Myths . " to be added " Filming locations . " to be added " Production errors . " to be added " Home video releases . This episode is featured in the following DVD sets :