Adam Carter grandson of William Carter of the members of XCOM, lived in Union City, he is also a Journalist, willing to write history about Union Academy's dark moments, they were nothing but corruption, and they forgot the villains. As moment, he heard about the war against Extraterrestrial, the Union focused on fighting but to no avail, because the aliens had highly advanced technology, the Council of Nations announced the activate of the XCOM project, and some countries, like the United States, Russia, European Union, Africa, Middle East, Oceania and China and few people and government of Japan loyal to Council of Nation, and others in Japan loyal to Union Academy.