Avengers: Infinity War is a planned two part sequel to The Avengers and Avengers: Age of Ultron. The films will be the eighteenth and twenty-first main installments in the Marvel Cinematic Universe as well as the sixth and ninth in Phase Three. Part I is set to be released on May 2, 2018 with Part II being released on May 3, 2019. Thanos will play a major role in the film, with the plot revolving around the Infinity Gauntlet.