Universal Century, 0079. As the One Year War rages its path across time and space, a lone woman, out of place, wanders the ruins of the Pacific North West and finds herself holding the fate of all History in her hands. The path of the Universal Century will be rewritten as the survival of a single man sets the stages to change the course of Humanity forever. Who will survive?

When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.