| TV Episode | United Kingdom | Colour | Adventure, Drama, Family | 25min
| Stars: Peter Davison, Richard Todd, Nerys Hughes
| S19 E9 | 1st February, 1982
While Nyssa stays in the TARDIS, the Doctor and Adric explore Deva Loka and encounter a planetary survey team. Meanwhile, Tegan succumbs to a dreaming tree
The adventures of the Doctor, a Time Lord who travels with his companions through time and space in the TARDIS, regenerating into a new persona when near death.
The TARDIS lands on the planet Deva Loka; Nyssa remains behind while the others explore. Tegan falls asleep under wind chimes and becomes possessed by an evil force, the Mara.