货车司机林晨途经黑风口收费站,空车竟被作(zuò )弊地磅判定超重30吨(dūn ),遭站长(zhǎng )王海勒(lè )索五万(wàn )罚款。林(lín )晨假意顺从,让对方开具盖有公章的过磅单,随后报警(jǐng )称车上30吨翡翠原石(shí )失窃,凭(píng )借单据(jù )形成铁(tiě )证。他联(lián )合众多受害卡友提供敲诈证据,牵出幕后老板(bǎn )雷大强的涉黑团伙(huǒ )。最终警(jǐng )方彻查(chá )打掉该(gāi )犯罪团(tuán )伙,追回(huí )赃款返还司机,黑风口黑心收费站被彻底拆除(chú ),林晨为兄弟与同行(háng )讨回公(gōng )道,守护(hù )了公路(lù )上的清(qīng )朗秩序。