Charlie and Rachel run away from home to get married in Las Vegas. But they get attacked by a zombie who takes Rachel with him to hell, where she will become one of Satan's brides

Bill and Ted are high school buddies starting a band. They are also about to fail their history class—which means Ted would be sent to military school—but receive help from Rufus, a traveller from a future where their band is the foundation for a perfect society. With the use of Rufus' time machine, Bill and Ted travel to various points in history, returning with important figures to help them complete their final history presentation.