Planet (The Defeat of the Daleks)

The Daleks planned to invade an unnamed planet. The First Doctor and Ian Chesterton found themselves on this planet and encountered the Daleks.

In order to defend themselves, the Doctor and Ian developed a ray gun. When a group of Daleks found them, Ian fired the gun at a Dalek called DK3, destroying him. Realising that the planet is not defenceless, the Daleks evacuated. (COMIC: The Defeat of the Daleks)