Engineer Isaac Clarke and his crew get stranded on a large, abandoned mining ship. There, Clarke needs to repair the giant ship while battling nasty aliens and solving the mystery of what happened to the ship.
The Ruby Throne lies empty. In the wake of this, unlikely and fragile alliances are made between races as they fight to control the throne. In the midst of this a much more dangerous threat emerges that threatens to engulf all of Tamriel.