“My heart. Against your gun. Put them on the line and see which wins.“

In year 2120, an epidemic heart disease forces the army to take control of the city of Philia. As the army leader soon turns into a dictator, a group of Rebels rises against his government.

Eighteen-year-old Landy Miles is a top soldier and an elite sniper. A loyal supporter of the government’s goal of safety and peace, she hunts criminals and Rebels and has never failed to make a kill. When she is charged with the mission to kill Cale Levard, a Rebel accused of crimes against the city, she sees him as just another target and easily executes him, until she later sees him alive. She repeats her mission, only to find him again safe and sound. The more she tries to eliminate him, the more he surprises her.

In her quest to find his survival secret before the government learns about her failure, Landy will get to know him and the Rebels better. Her feelings and alliances gradually change, as she uncovers the real nature of the dictator she was proud to serve. Forced to keep hunting Cale and the Rebels or be eliminated herself by the government, Landy eventually has to choose between justice and duty.