While Daryl is trying to survive with a bear at his house; we see more of his story.
We also learn why the Kazoop want to destroy the Earth. The Kazoops decide by attacking Fort Knox this will be a positive outcome. All they want is Grzzt and forcing the earthers to give him back is one way to do it.
The use of the colors definitely is a plus for this series. It really gives you the sci fi feel.