The Leisure Hive ( TV story ) The Leisure Hive was the first story of Season 18 of " Doctor Who " as well as the first serial produced by John Nathan - Turner . He immediately instituted a number of radical new changes to the series . The title sequence was redone with a ' star - field ' motif . Delia Derbyshire ' s arrangement of the " Doctor Who " theme was abandoned in favour of a more dynamic , glossy and ' funky ' version of it , done by Peter Howell ( also of the BBC Radiophonic Workshop , where Derbyshire worked previously ) , using synthesisers ( particularily the and synthesisers , as well as an EMS vocoder ) . These wholesale alterations to the programme ' s opening sequence would , with relatively minor adjustments , remain in place until season 24 . At the same time , Nathan - Turner decided to end composer Dudley Simpson ' s long association with the programme . He chose the Radiophonic Workshop to handle the incidental music for " The Leisure Hive " . The story also brought a new uniform look for the Fourth Doctor . His coat and trademark scarf were now coloured burgundy , the latter with purple stripes . The new question mark motif premiered here on the Doctor ' s shirt collar and would persist throughout Nathan - Turner ' s era . Narratively , " The Leisure Hive " was an unusual story in that it was commissioned directly by the producer rather than the script editor , because Christopher H . Bidmead was not yet hired . New executive producer Barry Letts , who had previously served as the show ' s producer during most of the Jon Pertwee era and during Tom Baker ' s first story , also had a significant hand in shaping the story ' s outline . Letts ' s new role as executive producer would only last for the duration of the season , and would be his last contribution to " Doctor Who " prior to his passing in 2009 . Synopsis . The Doctor and Romana arrive on Argolis in search of a peaceful holiday at the famed Leisure Hive . Instead they become embroiled in both a takeover scheme by the Argolins ' historic enemy the Foamasi and the machinations of Pangol , child of the Generator . Plot . Part 1 . The Fourth Doctor , having yet again failed to pilot the TARDIS to Brighton Pavilion , snores loudly on a deck chair as Romana and K9 discuss alternate holiday options . Frustrated , Romana tosses her beach ball into the sea and K9 goes to fetch it , badly damaging him . Romana convinces the Doctor to go to Argolis , home of the famed Leisure Hive . Argolis had been nearly annihilated by a brief but devastating war with the Foamasi , but the surviving Argolin s have built the domed holiday palace , offering anti - gravity racquetball among other delights . However , the Hive has run into financial dire straits . The chief executive , Morix , ageing and near death , is pondering a buy - out offer from Earth businessmen Brock and Klout , who represent the Foamasi , but his hotheaded son Pangol will hear nothing of it . Morix dies and is succeeded by Mena , who herself is getting old . Meanwhile , an alien presence has infiltrated the Hive . The Doctor and Romana arrive and watch a demonstration of the Hive ' s newest offering , the Tachyon Recreation Generator , but the demonstration goes horribly awry when a volunteer from the crowd is torn apart inside the machine . The Doctor and Romana realise the recordings of the experiments have been faked . The Doctor explores the Tachyon Recreation Generator , and when an alien turns the machine on , the Doctor appears to be torn limb from limb . Part 2 . The image onscreen is merely an illusion - the Doctor escaped the generator from the back . He and Romana are taken to Mena by security guards . Meanwhile , staff scientist Hardin has arrived , and when Mena learns of the newcomers ' experience with time technology , she asks Romana to assist him with tachyonics experiments . They are trying to use the questionable science to reverse the flow of time . The Argolin race is sterile after the war with the Foamasi . Rejuvenating themselves is the only way to survive . Mena begins to age quickly , a result of the radioactivity on the planet . Meanwhile , Hardin and his partner , Stimson , discuss their experiments , which have been faked by them . Hardin wants to confess . Stimson plans to get off Argolis . Romana and Hardin appear to have some success , but when they go to tell Mena , the equipment explodes . Guards find Stimson , who has been murdered , and arrest the Doctor . He stands trial in the boardroom and claims his innocence . Romana and Hardin announce their success , but before it can be used on Mena , Pangol wants to test it on the Doctor . As the experiment proceeds , Romana realises something is wrong , but she is too late to stop the experiment . The Doctor emerges from the machine , aged several hundred years . Part 3 . The Doctor and Romana are imprisoned and try to figure out what went wrong with the experiment . Pangol discovers that Hardin ' s experiments were faked , which Hardin admits to but says he is near to a breakthrough , and wants Romana ' s help . Mena refuses . Vargos fits the Doctor and Romana with limitation collar s . They can roam freely around the Leisure Hive , but must stay within the limits programmed into the collars . If they enter a forbidden area or attempt to remove the collars , these will tighten around their necks and strangle them . Pangol prevents Mena from signing contracts with the Foamasi . He wants to rebuild Argolis . He is the first Argolin created in the recreation generator and has big plans for the machine . Hardin frees the Doctor and Romana from their collars with a borrowed security key , and they decide to put Romana in the machine . She works on the machine but is confronted by an alien . Pangol sees the Doctor on a monitor and goes to stop him . He programs the machine to age the Doctor , who he thinks is in the machine , another two thousand years . The alien , a Foamasi , helps Romana escape . The Foamasi doesn ' t speak with words but the Doctor can understand him . They go to the boardroom where Pangol reveals his grand plans to Brock - he will raise an Argolin army from the generator . The Foamasi approaches Brock and pulls at his face - revealing that it is a mask and he is a Foamasi . Part 4 . The first Foamasi takes Brock ' s voice synthesiser and reveals that Brock and Klout ( the murderer ) are disguised Foamasi , members of a dissident group called the West Lodge . They do not act in the interest of the Foamasi at large , however . The two planets are now at peace . Pangol is suspicious of the Doctor and the Foamasi , and refuses to let them leave . When the Foamasi ship takes off , it is destroyed by Pangol . Pangol plans to start creating his clone army . The Doctor and Romana try to stop him by using the randomiser from the TARDIS . Pangol enters the machine , wearing the Helmet of Theron , and duplicates himself into an army . However , because the Doctor was in the machine at the time , the clones are images of the Doctor , who has been restored to his original age . The clones do not last long , disappearing one by one . Hardin takes a near - dead Mena to the machine to regenerate her , but Pangol pushes past him . Both Mena and Pangol get into the machine , and both are restored , Mena to a young adult age and Pangol to a baby . The Doctor shuts off the generator . The Foamasi who rescued Romana appears , not having been in the Foamasi ship when it was destroyed . He and Mena begin negotiations for peace . The Doctor and Romana , with the randomiser removed from the TARDIS , leave to continue their travels . Home video and audio releases . CD Release . In March 2002 , At the BBC Radiophonic Workshop Volume 3 was released with " The Leisure Hive " score in it . DVD releases . This story was released as " Doctor Who : The Leisure Hive " . Released : Contents : Notes : VHS releases . Released as " Doctor Who : The Leisure Hive " . Released :