"Skin of Evil"
Airdate: April 25, 1988
21 of 176 produced
22 of 176 aired
Introduction
The Enterprise is en route to pick up Counselor Troi's shuttle when it suffers an emergency and crash lands on the planet Vagra II. Troi and the shuttle's pilot are taken hostage by a mysterious and malevolent creature named Armus. Will the Enterprise be able to rescue them? What price will they have to pay to do so?
Every once in a while, you'll find a being of pure evil that looks like this in the toilet, too.