The First Doctor > Dodo Chaplet > Steven Taylor > Elders > Cavemen
An allegory about equality acted out by evil guys in blackface and fairly sophisticated cavemen. Also, The Doctor has a vibrator. No lie.
The First Doctor > Barbara Wright > Ian Chesterton > Susan Foreman > Cavemen
Teachers Ian and Barbara follow Wunderkind pupil Susan to a junkyard, where they meet her grandfather, The Doctor.