In the first 50 years of the 21st century, mankind did not usher in the final prosperity and peace, but fell into a protracted interstellar war. Sintari, an extraterrestrial civilization, invaded the earth, and countless human warriors killed battlefield one after another. The time comes to 2079. In order to eventually destroy alien invaders, mankind has stepped up the development of new weapons. Spencer O'Harmon (Gary Hinnis Gary Sinise) is an engineer in the weapons R & D department. His research has made a breakthrough, and the birth of new weapons is just around the corner. And at this critical moment, Spencer's identity was questioned. The government suspected that he was a spy sent by Sintari, and there was a powerful bomb hidden in his body. Although he kept making excuses, it was of no avail. Seeing that the situation was in danger, Spencer waited for a chance to escape. While avoiding the capture of the government, he tried to prove his innocence. In this process, the truth gradually emerged, and Spencer himself was greatly shocked in the face of the truth.