一项针对南非犀牛偷猎危机为期四年的调查，两名制作人深入南非犀牛保护区，和护林员一起奔赴前线，记录并目睹了猎杀及拯救的全过程。犀牛保护区沦为偷猎重灾区，从巡护员到突击队员、飞行员，再到突袭主要城市野生动物走私窝点的精锐警察部队，他们所处情境如同战场。在调查中，记者发现犀角作为一种治疗癌症的药物广受欢迎，作为琳琅满目的饰品也深受青睐，其背后的贸易链条与残忍行径沾满了无数犀牛母子的鲜血与嘶吼。国际舞台上，各国之间的争斗已形成一条贸易红线。制片人涉入这个禁区，与有权势的精英们共度时光，全片揭露了世界范围内犀角贸易的全景，旨在改变地球上仅存犀牛的困境。

Two first-time filmmakers stop their lives to find out why rhinos are being killed for their horns. Carving out six months for the project, the women quickly find themselves immersed in a world far larger and more dangerous than they had imagined, only emerging from their odyssey four years later.