The Enemy Within

The Enemy Within is a Star Trek episode which illustrates the idea of an intrinsic human dualism between good and evil. While realistic in its portrayal of what a man of fallen nature would do, its portrayal of ill-clad men trying to survive sub-zero temperatures is poorly done. Blankets could have been transported down, and the ship may have had a shuttle craft. The men made no attempt to build a shelter or even to shield their faces and hands from the cold.

The writer, Richard Matheson, has Spock make a particularly insensitive comment to Yeoman Rand in the last scene.