Purposeful travel, not aimless wanderings.
Though it often feels to viewers that the Doctor’s adventures follow one after the other, significant gaps can be inferred between certain stories on Doctor Who. These lacunae offer fertile ground for writers to explore the ways the Doctor’s previous visits to a place have affected its development; at their best, as in the revelation of the Fourth Doctor’s face carved into a mountainside in “The Face of Evil,” such newly invented past interactions both deepen the stakes of the current narrative and remind viewers of our favorite Gallifreyan’s essentially unknowable history. First time series contributor Glen McCoy employs this device in “Timelash” (Story Production Code 6Y), which draws heavily on the Doctor having visited the planet Karfel in one of those heretofore unknown off-screen jaunts.
Karfel, currently under the dictatorial rule of the mysterious Borad (Robert Ashby/Denis Cary), has seen better days since that last encounter. All reflective objects have been banned, war is in the offing with another world, and a rebellion plots against the Borad, who never appears in person, only on viewscreens, attended solely by his tall, blue-skinned androids (Dean Hollingsworth). Those deemed disloyal suffer exile by means of the Timelash, a temporal corridor that, for reasons quite unexplained, leads back to twelfth century Earth. The Doctor and Peri inadvertently encounter this corridor while planning where to go on holiday, the TARDIS passing through right as Vena (Jeananne Crowley), a Karfelon councilor who has just seen her father killed and fiancĂ© sentenced to exile, jumps into the time stream with a key needed to control all the energy on Karfel. She floats, ghost-like, through the blue box, which has the effect of briefly redirecting the Timelash to nineteenth century Earth—1885, to be precise—landing her with a clunk in the Scottish country home of one Herbert (David Chandler), an aspiring writer (hint) who happens to be conducting a seance at the time.
After the death of Vena’s father at the Borad’s surprisingly scaly hands, the ambitious Tekker (Paul Darrow, the second Blake’s 7 star to appear in as many episodes, after Jacqueline Pearce in “The Two Doctors“) takes over the figurehead leadership mantle of Maylin. He uses the Doctor’s subsequent arrival on Karfel to solve the problem of the missing key, which has vexed the Borad immensely. After the briefest of welcomes, he cajoles the Doctor into retrieving the key from the time corridor by threatening Peri. She, in turn, outwits her android captor and escapes into tunnels inhabited by reptilian creatures known as a Morlox (big hint). Members of the rebellion also hide in the tunnels, and they save her from the beast, in order to kill her as a spy. Peri survives only by name-dropping the Doctor, whose last visit has turned into a myth suppressed by the Borad, and then by correctly identifying Jo Grant’s picture in a locket given to one of the rebel’s grandfathers by the Doctor—the Third Doctor, as a hidden mural later confirms. But no sooner do the rebels spare her than one of the androids finds them.
The Sixth Doctor, meanwhile, calculates the exact moment to which the TARDIS has altered the Timelash’s end point and appears in Herbert’s hut shortly after Vena. Upon realizing that the legendary Doctor has returned to keep his “promise” to Karfel, Vena agrees to help him overthrow the Borad. Herbert, fascinated by the idea of a time machine (hint, hint), sneaks aboard the TARDIS, and the three travel back to Karfel posthaste. Tekker secures the amulet as soon as they arrive and orders an android to toss the Time Lord into the Timelash, after gloating at the Doctor’s naivety. And that’s just the first of two forty-five minute episodes…