Invaders from Gantac! (comic story)

Summary
The Doctor plans to attend his friend's birthday party on Maruthea. Instead The TARDIS lands in London 1992. The Doctor teams up with a homeless man when he discovers that a race of Gantacs have taken over the planet. What is the lost treasure of Zantar Wrouth? Who is really in charge of the Gantac?

Characters

 * Seventh Doctor
 * Leapy
 * Yaga
 * Gantac Warrior 1
 * Gantac Warrior 2

Continuity
to be added

Timeline

 * This story occurs after DWM: Follow That TARDIS!
 * This story occurs before Time Bomb!