The Borad accepts no opposition and enables Maylin Tekker to expose the rebels and trap Peri with the Morlox. The Doctor tries to avert a war between Karfel and the Bandrils.
Tranquil Repose isn't the simple funeral home it appears to be - it is run by the Great Healer or, as the Doctor knows him, Davros, who is using the bodies for his own ends...
Davros plans to create an army of Daleks loyal only to him but on Skaro, the Daleks have other plans and head to Necros. Caught in the middle of this, the Doctor must save Peri...
The Second Doctor and Jamie visit space station Camera to speak to the scientist Dastari, but the station has a saboteur aboard - Chessene is working with the Sontarans...
The Cybermen are hiding in the London sewers and turning humans into cybernetic slaves. On Telos, two slaves make a bid of freedom and find a way to escape the planet for good.
On Telos, the Doctor is reintroduced to the Cyber Leader and meets the Cryons, the planet's original inhabitants who will go to any lengths to get their world back.
Needing Zeiton 7 ore urgently for the TARDIS, the Doctor takes Peri to Varos. They quickly become part of the sadistic programming that entertains the populace.
As Peri and Areta begin to transform into a bird and a reptile, the Doctor faces Sil, who has negotiated mining rights on Varos, depriving the Time Lord of what he needs...
People cannot sleep in the town of Killingworth and the Doctor realises it is the work of a renegade Time Lord, the Rani, who has teamed up with the Master to cause chaos...
George Stephenson and Luke Ward do their best to help the Doctor and Peri, but the Rani has other traps for the unwary, including the ability to turn people into trees...
The Doctor and Peri meet Jamie and learn the Second Doctor is with the Sontarans in Spain. At a hacienda, Chessene and the Sontarans set up base…
Chessene and Shockeye succumb to their baser instincts and revert to their Androgum ways, while the Sontarans prepare the Second Doctor to trigger their Kartz-Reimer capsule…
As rebellion grows on Karfel, the Maylin's daughter Vena falls into the Timelash while protecting a rebel. She's drawn into the TARDIS as it travels through a Kontron time tunnel.