Harry Musk is one in a million. That means that he's the one out of a million children who is perfectly proportioned but will never grow larger than a typical six-year-old. Adult, pint-sized Harry longs to be part of the big world.

An earthquake releases a strain of mutant cockroaches with the ability to start fires, which proceed to cause destructive chaos in a small town. The studies carried out by scientist James Parmiter, however, reveal an intent with much more far-reaching consequences.