Doctor Who: Galaxy 4

On an arid planet, the TARDIS trio encounter the Drahvins and the Rills; two species stranded on a planet doomed to explode. Both need the Doctor's help, but the Drahvin leader, Maaga, wants only her people to make it out alive.

• William HartnellDoctor Who
• Maureen O'BrienVicki
• Peter PurvesSteven