He’s a recluse, a cockfighting high-roller, a former cop and a maniac. But will Nemesio Oseguera Cervantes, aka El Mencho, do what he’s been threatening for years and become the most powerful cartel boss on the planet?

From avocados to abogados, weed to coke to fentanyl, Mencho is a narco so bloodthirsty his men are compared to ISIS. Can the Mexican state cut him down to size? Or will a lifelong quest to build a citadel in his home state of Michoacan come off, ruling local civilians with a sadistic iron fist? We look at the past, present and future of who might just be the scariest criminal we’re profiled on this show.