Following the success of the first film, Mario and Luigi embark on an unimaginable adventure as they are swept into deep space. This time, they meet Rosalina, the guardian of the stars and the "mother" of the adorable Luma creatures. The group must join forces to stop Bowser's plot to conquer the entire universe, as he collects Grand Stars to build a powerful galactic empire. The film promises breathtaking interplanetary chases with surreal gravity and stunning visuals.