The Atlantis Origins Project exists for "the exploration and scientific discovery of alien-inhabited worlds," and Isis and Janus have served in the program for over twenty years. When a strange computer malfunction leaves them locked inside the arcology, a large dome at the center of the ship, they must figure out a way to get out. But the arcology isn't empty. There are alien species, brought back for scientific study, inside as well. And not all of these species are friendly...