It follows the television series format of two parallel storylines. The first plot is about a seemingly human-Tenctonese Hybrid (biology) child involved in a sinister experiment with a Newcomer scientist disguised as a human. The sub-plot is the budding relationship between Matt Sikes and his Tenctonese neighbor Dr. Cathy Frankel. The relationship between Matt and Cathy was an ongoing theme of the ''Alien Nation'' television series.