The Extortioner (comic story)

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

Characters

 * Second Doctor
 * John and Gillian
 * The Extortioner

Continuity
to be added

Timeline

 * The Extortioner occurs after VG: Destiny of the Doctors
 * The Extortioner occurs before TVC: The Trodos Ambush