Keepers of the Alliance follows the continuing adventures of quantum physicist Alberto Rys as he becomes embroiled in an interplanetary conflict that was ancient even before mankind was born. After uncovering a web of treachery that threatens the lives of his research team and the small California desert community of Pueblo, Dr. Rys and his son, Pedro, embark on a mission to save their friends and the town. In the process, they're sent to Onav, a planet unlike any other and home to the spirits of an ancient alliance that holds the key to humanity's past and its future. They soon learn of the Grell, a race of predators whose power surpasses that of even the Allies' and are asked to make a choice. Will Earth join their struggle against the Grell Domain? Or will the disembodied spirits of Onav truly be the final keepers of the Alliance?