The Doctor and Nyssa’s visit to a tranquil region of space known as the Arc of Infinity is cut short by a strange phenomenon – some kind of entity penetrates the TARDIS and tries to merge with the Doctor’s body. The attempt is short-lived, and the Doctor escapes harm, but apparently the incident has been noticed – the Time Lords are recalling him to Gallifrey. With Nyssa in tow, the Doctor returns home only to discover that his biodata extract has been accessed by an unknown party – information that could be used to allow someone to take over his physical form. Fearing the ramifications of a Time Lord being taken over by an alien entity, the High Council – now led by the regenerated Borusa as Lord President – votes to have the Doctor executed. But a second attempt at a merge interrupts the execution, and the Time Lords find out that it’s no alien entity at work, but one of their own.
Season 20 Regular Cast: Peter Davison (The Doctor), Sarah Sutton (Nyssa), Janet Fielding (Tegan), Mark Strickson (Turlough)
Guest Cast: Leonard Sachs (President Borusa), Michael Gough (Hedin), Ian Collier (Omega), Colin Baker (Maxil), Paul Jerricho (Castellan), Neil Daglish (Damon), Elspet Gray (Thalia), Max Harvey (Zorac), Andrew Boxer (Robin Stuart), Alastair Cumming (Colin Frazer), John D. Collins (Talor), Maya Woolfe (Hostel receptionist), Malcolm Harvey (The Ergon), Guy Groen (Second receptionist)
Broadcast from January 3 through 11, 1983
LogBook entry & review by Earl Green […]