Episode Title:
Attack from Below.
Episode Description:
A race of subterranean people called the Belots are attacking farms on the surface. After they capture Teela, she soon realizes they were misguided into believing the surface dwellers are evil and does everything in her power to help them see the light. Teela tells viewers to not "let a few bad apples spoil the bunch"; that is, not blame or judge a group of people for an individual member's actions.
