In 'Proxima' we discovered ancient alien artifacts on the planet of Per Ardua - hatches that allowed us to step across light years of space as if we were stepping into another room. The universe opened up to us. Now in 'Ultima' the consequences of this new freedom make themselves felt. And we discover that there are minds in the universe that are billions of years old and they have a plan for us. For some of us. But as we learn the true nature of the universe we also discover that we have countless pasts all meeting in this present and that our future is terrifyingly finite.