The Last Precinct ( TV story ) The Last Precinct is the twenty - fourth episode of series 1 of " K9 " . This episode offered insight into Darius ' backstory with the appearance of his father . Synopsis . A vigilante group of former police officers discover the Department are upgrading the CCPC s with alien tech . They make a stand by holding Gryffen hostage . K9 and Starkey battle the intruders whilst Darius faces up to his past . Plot . At Gryffen Manor , Gryffen is preparing a sample of mucus while Darius tells him he ' s not sure it was a Jixen tailing them . Darius says that it was too fast . Gryffen shows the mucus to K9 , who then analyses it , and confirms it has been loaded with enough Jixen pheromone s to cover a thirty metre tall Kaldarean bedmite . A news report gets Darius ' attention . It tells of another attack on a CCPC in which one unit was held up and another kidnapped . Jorjie notices Darius ' shocked reaction when it is announced that a group called the Last Precinct have claimed responsibility . Gryffen tells Darius that if he can ' t keep his mind on the task at hand , he can rustle up some tea and biscuit s . Jorjie asks Darius about his obsession with CCPCs in recent newscasts . K9 tells Starkey it would be too hard to scan Darius for a social conscience . Darius snaps at K9 . Starkey tells Darius to calm down but he gets angrier , accusing them of ganging up on him . In the garage , Mariah and Darius chat . Starkey joins them and apologises to Darius for hitting a " raw circuit " . Darius regrets snapping at him . He says it ' s about the Last Precinct but it ' s old news to him . At the front door , Gryffen finds two CCPCs accusing him of conducting illegal experiments . He tells them they have the wrong house . The head CCPC persists but Gryffen tells them to take it up with June . The CCPC pushes him aside . As they enter , K9 finds something odd about the CCPC ' s energy signal ; it shouldn ' t be functioning . The CCPC uses a device on K9 , knocking him out . Gryffen realises the device is not standard issue and this is not a CCPC . When Jorjie uses her mother ' s override code , the CCPC doesn ' t comply . Gryffen tries to protect Jorjie but is restrained by the CCPCs , who declare that they are all under house arrest as Jorjie calls for Darius . The CCPC takes off his mask , revealing a human called Halloran . He tells Jorjie he is human and his comrade is a CCPC with a few minor adjustments . When Gryffen demands they leave , another human police officer with a CCPC says this is their house and always has been ; he has come through a secret entrance unknown to Gryffen . He announces that this is the final stand of the Last Precinct . Starkey arrives with Darius , who is shocked to see the officer , just as the officer is to see Darius . Halloran asks Sergeant Pike if he knows Darius . Pike says that Darius is his son . At the Department Mobile HQ , Thorne watches as four CCPCs approach the house . He sees Pike ' s message to the Department , announcing he has commandeered this police station for the Last Precinct . He makes demands : the immediate deactivation of all CCPC units and the CCPC cloning plant shut down in forty - eight hours . As he makes his third demand , Thorne orders it shut off . The Department Technician protests but Thorne says it ' s on a loop . When Thorne makes a loop joke he is irritated that the only humorous thing he will say in his life is wasted on the technician . June arrives to ask what is going on . She is glad Jorjie is at the library during this hostage situation . Thorne ' s face reveals that Jorjie is not at the library . The CCPCs try to enter the mansion but are knocked out by a force field . June orders an override of the mansion ' s security system . Thorne tells her that they ' ve tried , but the codes have been changed . June tells the technician to get Pike on vid - link communication . In the mansion , the team are pushed together . K9 is still offline . June opens contact with Sergeant Pike after determining he was one of the officers dishonourably discharged two years before , charged with trespassing and resisting arrest . June cuts to the chase and urges Pike to let the children go . Pike asks her which child she would choose . She tells him she ' d choose the girl . Pike knows that Jorjie is her daughter . After some squabbling , June stops the communication . Pike is offended by June accusing him of being a fanatic , but Gryffen says he considers him a home invader . Darius reminds Pike that he walked out on him in the middle of the night two years ago . Pike stalks off as Gryffen comforts Darius . K9 reactivates and charges his photon beam , but doesn ' t fire . K9 explains his living metal antibodies can deal with 99 % of terrestrial weaponry , but the weapon used on him is not completely of this Earth or time . Pike claims the Department have been installing extra - terrestrial materials in the latest CCPCs for the past six months and the Last Precinct have been harvesting them for their own use . Gryffen insists that June specifically opposes the use of alien technology in CCPCs . Pike opens up a CCPC and takes out an organic stalk which K9 detects as an alien bio - mechanical component of an unidentified species . Pike explains it ' s unidentified because it ' s been altered by the Department , twisted and mutated to serve their purpose . There ' s one of these in the heart of every Mark II CCPC . K9 secretly informs Starkey his repairs are 60 % complete . Pike decides he can play at the Department ' s game as Halloran was able to use the Department ' s alien bio - tech , creating weapons for the Last Precinct to use against them . He puts a green chip into the stalk as he explains that Halloran was one of the greatest forensic scientists in the world before he was tossed aside like a shoe . He plans to show the world the CCPCs for what they really are , unreliable alien machines prone to malfunction . As Pike presses a slimy hand print on a CCPC ' s shoulder , K9 alerts them to an unstable cybernetic bio - agent reaction and a level nine bio - mechanical virus has been incubated . Halloran insists it ' s not unstable , saying they conducted numerous tests and the virus is gene spliced to override the Department ' s control and replace it with theirs . K9 says that even though it ' s their plan , it isn ' t working . Pike turns to Halloran , who dismisses K9 . Pike orders Green Hand to initiate bio - mech transmission protocols . As he infects the other CCPC with the virus , Halloran explains they will be disconnected from the Department ' s control , unresponsive and utterly useless except to the Last Precinct ; it will give the Department no choice but to reinstate humans into the police force . K9 advises everyone to stay far away from the infected CCPC . His scan confirms they are unstable . Pike decides to let them go but keep Gryffen for leverage . He orders Halloran to take Gryffen upstairs and release Green Hand into the CCPC ranks . In Darius ' room , the team barricade the door . K9 says his self - repairs are 80 % complete . Darius says it doesn ' t matter where they hide as he came here with his dad all the time . As Halloran and Green Hand move through the tunnels , the CCPC becomes unresponsive . Halloran tries to use his control device , but it is knocked out of his hand by Green Hand , who strangles him , chanting its new objective : to crush all resistance and subjugate all humans . Pike asks June , who is with Thorne , if she has considered his demands , warning her it ' s her last chance to get out of this with her dignity intact . June tells him the Department doesn ' t give in to threats and she ' s just sent an elite squad of fresh CCPC reinforcements , fully shielded against anything he throws at them . The squad of four forms up near the front door , where they are met by Green Hand , who infects them . Pike announces he intends to reveal how useless the CCPCs and their alien technology are , confusing June . She turns to Thorne , who tells her not to listen to him , dismissing Pike as mad . Pike insists Thorne knows more than he says . June orders the CCPCs to advance , but they don ' t comply . The CCPCs chant the same words as Green Hand and move towards the Department Mobile HQ . The CCPC in the mansion makes his move as the CCPCs outside attack the HQ . Thorne says it wasn ' t meant to go like this yet , shocking June , who asks what he put in them . Thorne tells the driver to get them out of here , but the CCPCs are attacking the engine . Pike tells Gryffen the truth behind the CCPCs : they are alien - infested cybermenaces , uncontrollable except by him . In the tunnels , Green Hand walks over Halloran , who regains consciousness and gets up . In Darius ' room , the kids talk about their parents . Jorjie did not know June was behind the police force becoming robots . Darius says there ' s a lot they don ' t know about their parents . Starkey says they ' re lucky to have parents . Jorjie only has one , while Darius considers himself the same , not counting his father . Jorjie admits that even though she loves her mother , she wants her to change and Darius wishes that his father stayed at home . An infected CCPC moves near the room as K9 observes that parents and children want to change one another but everyone stays the same . The CCPC breaks through the barricades just as K9 completes his repairs and shoots him , explaining that he synthesised the energy signature of the customised weapon . They make their way to the STM room where they are met by Green Hand , who is shot by K9 . They escape as he gets up . In the STM room , K9 and the others arrive . He alerts Pike he is no longer in command of the CCPCs . No one is . Green Hand returns . Halloran arrives and warns Pike the CCPCs have gone haywire . Pike uses the weapon and knocks out the two CCPCs . The teams unite upstairs , where Pike asks K9 why they have gone berserk . K9 says the unstable virus has mutated to its own cause . Darius is angry this is why Pike left his mother and him , to go down as a joke . K9 suggests that as an unstable virus has been created from corrupted alien material and the infected CCPCs have developed an immune system . Injecting a pure form of the alien bio - mech could work . Darius tells Pike to untie Gryffen , who can ' t figure out where to find the material to immunise the CCPC . He spots the STM and tells K9 to use his photon beam to get a component off the machine . Darius tells him he ' s risking his experiments and finding his family , but Gryffen says that if he doesn ' t do this he will lose another family . K9 heats the component , which Gryffen removes , then takes a piece of bio - mech from underneath . As only another cybernetic organism can generate enough energy needed for the immunisation , he puts the bio - mech inside K9 . As the CCPCs come up the stairs , K9 fires the immunisation at them , shutting them down . K9 moves out of the house and immunises the CCPCs attacking the mobile HQ . June goes outside to thanks K9 . K9 advises that the anti - virus patch is relayed as a coded energy pulse through CCPC com - central . Thorne arrives , saying K9 can ' t be trusted . June tells Thorne that the only person she doesn ' t trust now is him and they ' re having a debrief as to what he ' s done to the CCPCs . K9 and June go in the house , where she prepares to take Pike away . Gryffen asks Darius if he wants to say something to his father . June gives them a moment together . Pike tells Darius he ' s glad he found him again and apologises that it was this way . Darius says he ' s glad too . Pike tells Darius he ' s proud of him and he ' ll miss him and his mother . They share a tearful hug . Darius hopes that his father gets a proper trial and fair sentence . Thorne arrives and asks Pike what it ' s like to be taken out of the station by the CCPC again . K9 tells Thorne to treat Pike with the respect he deserves or there will be consequences . Pike and Darius smile at each other as Pike is taken away . The kids talk about parents again , can ' t live with them and can ' t live without them . They laugh when K9 notes their usefulness for pocket money . Story notes . " to be added " 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 :