The mid 21st century. Earth has a heavily armed defence network, and any ET arrivals are housed in the Exo Segregation Zone, known as the GREY AREA, which is policed by squads of Exo Transfer Control officers like Adam Bulliet and his team — wife Birdy, linguist Kymn, weapons expert Feo, and alien transfer Resting Bitch Face. Kymn and Bitch, thought KIA, were actually seconded to a black-ops unit, which they’ve now fled