Spontaneous Combustion is one of the first episodes to feature Randy Marsh as one of the main characters. He has recently proven to be a great source of material. It is nice to see this early version.
He is assigned to research the phenomenon that is spontaneous combustion. That is, people are exploding all over town and he has to figure out why.
The highlight in this episode is naturally Randy. His dreams of becoming a successful scientists are fulfilled, if only partially.
"Make love to me, Randy.. please."
This episode is very good, and marks a new era of South Park. An era that will end up being very good.