The Extortioner (comic story)

Summary
The TARDIS lands on a unnamed planet. Leaving John and Gillian inside the ship, the Doctor explores a nearby volcano. The volcano is the base of the Extortioner, an alien who plans to blackmail the inhabited universe with his fleet of rockets, unless they pay his ransom demands. The Doctor is captured and imprisoned. Escaping with his pocket laser, the Doctor throws the missile's warheads into the heart of the volcano causing an erruption which destroys the Extortioner's base. Enraged the Extortioner pursues the Doctor in a giant mechanical mole. The Doctor lures the Extortioner to a crack caused by the volcanoes erruption and the alien falls to his doom. The Doctor returns to the TARDIS.

Characters

 * Second Doctor
 * John and Gillian

Continuity
Take your pick from any or non of the followng options:
 * It's a parallel universe Doctor to the TV Version.
 * It's all a dream- see the Eighth Doctor strip "The Land of happy Endings".
 * It's a hideously complicated plot in which the Doctor is taken out of his time line, travels with John and Gillian, is returned to his 'normal' time line, regenerates, is taken out gain and reunited with John and Gillian before being returned to the 'TV' universe.
 * Don't even try to tie these strips to the Television continuity !