Mario, Rabbid Peach and their friends are back for a new adventure of cosmic scale! Cursa, a mysterious and malevolent entity seeks out energy to further its nefarious plans, plunging the galaxy into chaos. Twisting the planets with its evil influence, Cursa is determined to consume all the energy of the Sparks, uncanny creatures formed by the fusion of Lumas & Rabbids and destroy all who stand in its way. To bring order back to the galaxy and save the Sparks, Mario, his friends and Bowser team up with Rabbids heroes in a mysterious journey through ever-surprising planets.