The Star Festival is in full flow as falling stars shower down on the Mushroom Kingdom once again. Princess Peach invites Mario to watch the festival at her castle, but en route he comes across a Luma who takes a shine to him and dives into his hat to hide, giving him the Spin move powers. Before he reaches the castle, Mario is concerned to see that a gigantic Bowser, super-sized from harnessing the power from the stars, is attacking and capturing Peach. As Bowser escapes, Mario launches into outer space in pursuit. Cue an incredible mission in outer space - to save the Princess and bring peace back to the Mushroom Kingdom.