The Covenant, an alien alliance, arrives in the Star Wars universe with one goal: to sow chaos, enslave, destroy and annihilate the Republic. Their devastating offensive threatens to plunge the galaxy into an era of darkness and terror. However, the fate of millions of lives changes when the UNSC, veterans of the brutal Human-Covenant War, bursts onto the scene. With the mission of preventing the history of death and destruction from repeating itself, the UNSC allies with the Republic to face this new threat. An epic battle between two universes that will mark the future of the entire galaxy, unleashing a conflict that will decide the fate of entire civilizations.