The year is 2105, and Special Investigator Cassidy Caraway is on her unofficial last chance. If she can't convince this newest partner to work with her, her days with the Federal Investigations unit are numbered. Special Investigator Ethan Mercer likes his new partner, and wants to be on her side, but he's not quite sure how to cope with her increasingly strange theories. In a world where humanity listens to communications between alien species on the radio every day, Cassidy doesn't think theories involving beings from the stars or other dimensions are all that strange. Can the partners figure out how to work together, and solve the mystery behind a string of eerily similar but seemingly unrelated killings?