The new show will reprise Lisa Ling's investigation into North Korea, which originally exposed the country's authoritarian society, and bring it up to date, covering the changes that have taken place since Kim Jong-il's death and the rise of his son Kim Jong-un to power.
Inside North Korea: Then & Now with Lisa Ling
National Geographic correspondent Lisa Ling obtained exclusive access to North Korea in 2006 by posing as a humanitarian worker performing eye surgeries, offering a unique glimpse into the country's inner workings.