In the near future, Western countries and China are caught in a cold war, and the tense atmosphere of great powers has prompted the competitive development of advanced weapons including artificial intelligence robots. In order to cure his daughter's illness, Dr. Vincent McCarthy (Toby Stephens) transferred from a private enterprise to a research institute supported by the Ministry of Defense, dedicated to transforming soldiers who suffered fatal injuries on the battlefield into intelligent robots with powerful combat power, while secretly stealing money to treat his daughter. The beautiful Ava (Caity Lotz) passed layers of tests to enter the agency and became Vincent's assistant. After some trials, the two finally established their trust in each other. Unexpectedly, on their way home at night, they were attacked by spies from China. Vincent escaped by chance, and the dying Ava was transformed into an intelligent robot. In the suspicious institution, where will their fate go...