Young girl Jiang Baola (played by Jeon Se-hong) is a car model with a good figure and a lovely appearance. One day, she and her colleague and friend Zheng Yingzhi were introduced by a friend to a company to apply for a job, but they fell into a trap set by bad people who run adult websites. Yingzhi was accidentally killed, and Baola became a person who lost his freedom. Baola's brother Tae-hoon (played by Zheng Xiyuan) is a well-trained iron-boned man in the South Korean special forces. She is about to be sent to the battlefield in Afghanistan, but she learned about her sister's experience from her friends a few days before leaving. Tae-hoon asked for leave to temporarily leave the barracks. When the police were ineffective, he had to rely on his own strength to find his sister. Time passed a little bit, and Baola could encounter an accident at any time. With the help of his friends, Tae-hoon locked the opponent's lair and gradually approached the vicious and unscrupulous opponent...