In episode one of Behind the White Line, Richard gets suited and booted to attend the swanky Birdcage at Flemington, where racegoers make a beeline for the toilets to ‘rack up’. As the world’s highest users of cocaine per capita, Australia has become the number one target of Mexican cartels and crime syndicates. With a billion-dollar shipment headed Down Under, the US Drug Enforcement Agency (DEA) hatches a brazen plan with local cops from the small city of Perth, Western Australia, called Operation Beech.