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.

Infiltrados en la red de corrupción en torno al tráfico de marfil, exponen la caza ilegal y comercialización de estos elefantes africanos a punto de desaparecer.