The biggest drug cartel in the world isn't Mexican, or Colombian. It's Asian. Buried deep in the Burmese jungle are networks of cutting edge meth labs, guarded by rebels and run by kingpins so powerful they make El Chapo look like a corner boy. In 2019, Underworld cohost Sean Williams went looking for one of the billion dollar meth labs spending months on the Mekong, in lawless casinos and hunting a drug industry bigger than any other on earth...and now he's a dad!

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