Command & Conquer: Legions unfolds in a universe where following the Third Tiberium War, the CABAL launches another assault on humanity with their cyborg army. Simultaneously, the alien race Scrin lurk in the shadows, waiting to seize the Tiberium at the right moment. Despite their long-standing conflict, the Nod and GDI are compelled to unite once again in the face of these threats, fully aware that their own internal conflicts could erupt at any moment.