A story that follows police section chief Zhao Yiyang as he leads his men to unravel the truth behind a traffic accident and to bring the culprit to justice. When a car accident kills a child's parents, the newly-appointed section chief Zhao Yiyang (Huo Zhengyan) discovers that there are two other cars related to the accident. When he finally narrows down the suspects, he realizes that his current case involves an old case from his past.