Premieres Wednesday, June 30 at 8 p.m.

Since ecologist Rodrigo Medellin first kept bats in his bathroom as a child, he has dedicated his life to saving them. Now Mexico’s most famous export, tequila, is at stake. Medellin’s beloved lesser long-nosed bat is crucial to the liquor – it pollinates the plants the drink is made from. To save these bats from extinction, Medellin must track the bats’ epic migration across Mexico, braving hurricanes, snakes and seas of cockroaches. Sprinkling harmless UV dust on bats and following their glowing guano across the desert, Medellin devises innovative methods to conserve Mexico’s bat population. Narrated by David Attenborough.