描述
：A lawyer who has been sentenced to jail becomes successful in business after serving time. A cop with a flourishing career solves case after case. The two people who are on opposite sides of the law are forced to join hands.
Chi Zhen (Zhai Tianlin) uses his wits and courage to outsmart the rich and power, making him a thorn in the side of the police force and earning him notoriety in other circles. Meanwhile, model student Lu Li (Yin Zheng) graduates from police academy at the top of his class and commences his dream career in the police force. After cracking a series of tough cases, he is promoted to chief of police within just a few years. Four years on, Chi Zhen and Lu Li’s paths fatefully cross. Though polar opposites to begin with, the ex-convict and chief of police put their differences behind them and come to trust and rely on each other.
分集簡介
：陸離曾經的搭檔楚刀被匪徒劫持，陸離前去談判，可就在此時，董局下令擊斃了所有的劫匪，也包括被綁為人質的楚刀。董局解釋楚刀是劫匪安插在警局的內線，張局的死也是他壹手所為，因此才會下次開槍。壹年後殺害張局的兇手之壹王克打電話給陸離要求給他提供護照。就在陸離與王克見面的時候，鄭世傑接到董局的命令擊斃了王克。宅男黃嘉倫找到池震報案稱，他感覺自己被人跟蹤，並且認定曾經有陌生人進過自己的家。黃嘉倫向池震透露，如果有壹天自己死亡，要他壹定要當成兇殺案來處理。池震反復琢磨不得其中要義，就在他準備再向黃嘉倫了解情況的時候，卻接到他已經死在了地鐵站的消息……
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