救救加灣鼠海豚!因石首魚的魚鰾可製成名貴血花膠,漁民利用刺網非法捕獵,活在同一海域的加灣鼠海豚亦連帶遭殃,正瀕臨絕種只剩十五條。要打擊濫捕濫殺殊不容易,對手是墨西哥毒梟與中國走私集團,視血花膠如海中的可卡因。科學家、新聞工作者及環保人士,決心展開保衛戰。里安納度監製,李察朗康尼精心部署拍攝,拍出恍如《毒裁者》(2015)的驚險,臥底搜證,軍警與罪犯開戰,保衛者出海巡邏,只是為了令加灣鼠海豚逃離悲慘命運,存活下去。The vaquita, the world's smallest whale, is near extinction as its habitat is destroyed by Mexican cartels and Chinese mafia, who harvest the swim bladder of the totoaba fish, the "cocaine of the sea." Environmental activists, Mexican navy and undercover investigators are fighting back against this illegal multi-million-dollar business.