The episode begins with Mr. Incredible, Frozone and Mr. Skipperdoo filling the viewers in on previous events. An evil villainess named Lady Lightbug (described by Mr. Incredible as "sinister, yet lovely") has stolen the West River Bridge, leaving cars stuck on both sides of the river. Resolving to amend the situation, Frozone builds a temporary bridge of ice and the three skate away to find their nemesis.