Emperor of the Daleks! (comic story)

Summary
The Sixth Doctor, playing out his part in a plan he won't see completed in this lifetime, takes Peri to Skaro and uses a computer virus to disrupt the Daleks' systems and rescue Davros from his trial. When the Daleks finally regain control, they decide to use one of their greatest enemies to locate the other. Abslom Daak is thus plucked out of his timeline moments before dying in the Death Wheel over Hell; the Daleks use humanoid robots to convince him that he's been brought back to Earth, and send him back to Hell to capture the Seventh Doctor. The Doctor and Benny have just arrived on Hell to find that Daak's old shipmates aren't dead after all, and when Daak arrives the Daleks transport them all back to Skaro. The Doctor uses the remnants of his virus to evade capture briefly, but the Daleks have planted a gas trap in the body of Daak's dead lover Taiyin, and when Daak tries to recover her body the trap is triggered, enabling the Daleks to capture them all -- and ensuring that Taiyin will remain dead forever.

The Daleks fit the Doctor's companions with mind-controlling devices, and force him to lead them to the planet where he took Davros. On the way, he questions the Black Dalek in charge of the expedition, and learns that there are elements on Skaro who believe that Davros should be allowed to return to power and shape the future course of Dalek evolution. The expedition lands in a jungle filled with hostile vegetation, and the Doctor leads them to a pyramid where Davros is waiting -- with an army of Daleks, the survivors of the lost Spiridon expedition, which he has conditioned to serve him. As the opposing Dalek factions do battle, the invisible natives join in and enable the Doctor and his friends to escape. The Doctor's friends destroy the Dalek shuttles, and the ships in orbit are destroyed when Davros' pyramid reflects their own weapons fire back at them. Davros then captures the others; although he had promised the Doctor he would reintroduce concepts such as pity and compassion to the Daleks, he has not done so, and instead he threatens to kill Benny slowly unless the Doctor takes him back to Skaro, uses his computer virus to let Davros seize control, and then tells him all about the Hand of Omega he'd mentioned while helping Davros to escape.

The Doctor does as requested, and Davros' army of Daleks conquers Skaro and exterminates the former Emperor. But just as Davros appears triumphant, the Doctor reveals that he'd released Daak from his bonds earlier, and Daak destroys the Daleks guarding them and also incapacitates Davros. The Doctor then summons the TARDIS, and he and his companions flee as the virus sets the city reactors to overload and explode. The Doctor takes his friends to the planet Paradise to relax, and explains to Benny that he's been setting up events which he has already experienced; Davros will survive the explosion, build a new army of Daleks, and head for Earth in 1963 to seize the Hand of Omega -- resulting in the destruction of Skaro.

Characters
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Continuity
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