Join National Geographic's Lisa Ling as she captures a rare look inside North Korea - something few Americans have ever been able to do. Posing as an undercover medical coordinator and closely guarded throughout her trip, Lisa moves inside the most isolated nation in the world, encountering a society completely dominated by government and dictatorship. Glimpse life inside North Korea as you've never seen before with personal accounts and powerful footage. Witness first-hand efforts by humanitarians and the challenges they face from the rogue regime..