The episode starts with The Monarch, a supervillain whose persona is built around the monarch butterfly, explains his scheme to destroy his archenemy, scientist Doctor Thaddeus Venture. The Monarch has constructed a ship that resembles a meteor and filled it with three of his henchmen. The "meteor" will fall on the grounds of the Venture compound; when the naturally curious doctor begins to analyze the vessel, the henchmen will emerge and overwhelm him.