“Ralph Breaks the Internet: Wreck-It Ralph 2” leaves Litwak’s video arcade behind, venturing into the uncharted, expansive and thrilling world of the internet—which may or may not survive Ralph’s wrecking. Video game bad guy Ralph and fellow misfit Vanellope von Schweetz must risk it all by traveling to the world wide web in search of a replacement part to save Vanellope’s video game, Sugar Rush.