title "The Mark of Archanon"; (2) Helena is relegated to the underground shelters with her patients before the attack and is not seen until the epilogue; (3) Maya transforms into a potted plant to hide from Varda and threatens to shoot herself with Verdeschi's gun when outed. Koenig talks her out of committing suicide; (4) A different epilogue was scripted where the six regular characters relax in Koenig's quarters. The question of her Psychon past caused Maya to recollect an encounter with a handsome Psychon boy during a holiday to her planet's Southern Flora Region. Jealous, Verdeschi sweeps her off her feet and out of the room. When left alone, Koenig and Helena reflect that 'What's in the past has gone...fate has played us some strange hands but we've won through in the end. As for the future...that starts right here and now,' and would close the scene with a kiss. (This seems to acknowledge the staff's awareness this would be the programme's final installment.) Many of the changes from the above version of the script would be motivated by the budgetary restrictions of this being the series' last episode. Scenes set in Medical Centre and Koenig's quarters would take place in Command Centre in the re-write. The scene showing Helena in an underground shelter was cut. Carter would have been shown coordinating Bill Fraser and the Eagle attack force on the Dorcon ship from Command; in the final draft, Fraser went unmentioned, and Carter himself was seen via TV monitor in the pilot's seat, leading the strike. The Dorcon vessel's sets were constructed out of pre-existing flats and set-dressings from previous episodes. Attentive viewers would recognise actor Laurence Harrington (playing Stewart) from his previous role as Tom Jackson in "Journey to Where". This installment would fulfill first-season script editor Johnny Byrne's three-script commitment to producer Fred Freiberger. After seeing his scripts "The Biological Soul" and "The Face of Eden" (later "The Metamorph" and "The Immunity Syndrome") extensively re-worked (for the worse by his reckoning) for new series format, he gave the man a 'Freddie Freiberger/Johnny Byrne' action adventure story which would revolve around Maya, but done in such a way she would be rendered helpless. Tired of Maya being used to get out of every perilous situation, he created a race that hunted Psychons—as they would be able to control them. Byrne would have preferred Freiberger to use his