TNG Season 6 Summary . The season begins with the successful rescue of Data from the nineteenth century , and we learn just how long Guinan has actually known Picard . The crew also took part in a variety of shady operations , the first of what would be many departures from Gene Roddenberry ' s more Utopian vision of the future . Picard is temporarily assigned away from the " Enterprise " for a dangerous espionage mission against the Cardassian s , but is captured and subjected to torture , nearly succumbing before being released . Deanna Troi engaged in a similarly risky mission of espionage against the Romulan s . The " Enterprise " also nearly became a victim of space pirates . Picard also underwent significant personal development during this season . He formed an intense and troubled romantic relationship with the " Enterprise " s head of stellar cartography , Nella Daren . After his artificial heart is nearly destroyed , Q helps Picard experience a vision of the unremarkable life he could have led , giving him a better understanding of his mortality and his reasons for living . Riker also experiences a deeply personal conflict , making a gripping personal battle with his own sanity , and later discovers an accidental transporter - copy of himself that had been abandoned on a desolate planet for nearly a decade . Several well - known recurring characters make appearances this season , the most famous among them being Montgomery Scott . The TOS " Enterprise " engineer is discovered alive , and after an awkward period adjusting to the twenty - fourth century , sets out to explore the galaxy on his own . The sentient hologram Professor Moriarty returns , holding the ship captive in a complex game that he hopes will grant him freedom to live outside the holodeck . Reginald Barclay continues to develop , overcoming his fear of transporters . Q , in addition to his appearance in Picard ' s counterfactual vision , returns earlier in the season . We are left with the rediscovery of Lore , leading a group of rogue Borg , who with the influence of an emotional stimulant for androids , successfully seduced Data to become a willing participant in his violent plans in the cliffhanger that ends the season . Credits . Crew . Created By Executive Producers Co - Executive Producer Co - Producers Producer Supervising Producers Line Producer Story Editors Casting By Music By Main Title Theme By Director of Photography Production Designer Editors Unit Production Manager First Assistant Directors Second Assistant Director Costume Designer Set Designer Visual Effects Visual Effects Supervisors Post - Production Supervisor Supervising Editor Senior Illustrator / Technical Consultant Scenic Art Supervisor / Technical Consultant Make - Up Designed and Supervised By Art Director Set Designer Visual Effects Coordinators Original Set Design Original Starfleet Uniforms Script Supervisor Special Effects Property Masters Construction Coordinator Scenic Artists Hair Designer Make - Up Artists Hair Stylists Wardrobe Supervisor Sound Mixer Camera Operator Chief Lighting Technicians First Company Grip Key Costumers Music Editor Supervising Sound Editors Sound Effects Supervisor Sound Editors Production Coordinator Post Production Coordinator Visual Effects Associate Production Associate Based Upon Material By Science Consultant Casting Executive Pre - Production Associate Stunt Coordinator Post Production Sound By Monitors By Filmed with Panavision ® Lenses and Cameras The Sherlock Holmes characters were created by A . Conan Doyle . This use by arrangement with Dame Jean Conan Doyle . ( " Ship in a Bottle " ) Special Visual Effects By Motion Control Photography By Video Optical Effects By Special Video Compositing Editing Facilities