Bill & Ted's Excellent Adventures is a 1990 animated television series spin-off from the 1989 film Bill & Ted's Excellent Adventure. It follows the titular protagonists, dimwitted teenage musicians Bill and Ted, who are visited by Rufus, a man from the future, who needs them to graduate from high school to start a rock band that inspires the people of the future. They travel to various time periods, making sure that history happens as it should, more or less.