Synopsis：Narcotics detective 林风 (played by 张子文) has cracked several major drug trafficking cases in a row, setting his sights squarely on 周华 (played by 迟志强), chairman of 大运集团, yet lacks conclusive evidence. Meanwhile, 周华 dispatches his subordinate 雷阳 (played by 左金珠) to procure a new type of synthetic drug from overseas cartel boss 桑尼 (played by 骆达华), intending to flood the local market. What 林风 never expects is that the traffickers' new distribution method will drag his own sister 林雪儿 (played by 孙苏雅) into the case! And his former first love, 雷贝贝 (played by 曹菡), suddenly returns from abroad, seemingly tangled up in the drug case by countless threads... In his fight against the drug dealers, 林风 endures a dual trial of reason and emotion. As the night fades, will the hero finally see the light of dawn?