Dateline travels to Mexico’s spectacular butterfly forest and meets its brave defenders. But as global demand for avocadoes surges, cartels are looking for quick profits, putting farmers and billions of butterflies under threat. Subscribe to Dateline: https://bit.ly/3gkQHtr Website http://www.sbs.com.au/news/dateline Facebook https://www.facebook.com/DatelineSBS/ Twitter https://twitter.com/datelinesbs Instagram https://www.instagram.com/datelinesbs/ Watch more Dateline, SBS 9.30pm Tuesday, and on SBS On Demand. Dateline is an Australian award-winning international documentary series with a current affairs backbone. Every week we transport you to a different part of the world to share half-hour stories about family, social injustice, identity, tragedy, redemption and survival. We scour the globe to bring you special characters and a world of daring stories.