John contacts the Prime Minister, who authorises Elmer�s release. John takes Elmer to the doozlum pin, but Elmer refuses to go back to the ship, instead sending John. The Momma and Emily celebrate John's arrival, fitting him with Tickling Boots. Meanwhile, Elmer is re-arrested, and Elizabeth asks for his custody. The Ship tells John that he is to be the pair-mate for Emily, and that his telepathic powers have been blocked. Elmer arrives at the Lab, and tells Elizabeth that his people live on the Ship for many generations, and that when the next generation is been born, the Momma eats the father. On the Ship John is forced to wait on Emily, but when she leaves the room, he jams the waste disposal hatch open, allowing the air to escape; he then tells the ship to remove his tickling boots. The ship informs him that their original home planet was destroyed by nuclear weapons; the ship was made to allow some to escape and search for a new planet. It has decided that no planet is suitable, and the search must continue. John persuades the ship to switch-off as the search has been completed, and then he pilots it to Earth. The Momma becomes a fish shopkeeper, Emily a landlady in a pub, and Elmer a traffic warden.
Aired: 30 Apr 1975