This award-winning series presents compelling untold stories and covers a wide array of provocative subjects. "Explorer" aired for 25 years -- the longest-running documentary series in cable TV history -- before being relaunched in 2015 after a five-year hiatus. Each monthly episode of the new "Explorer" takes a similar deep dive inside a story from the pages of a recent National Geographic magazine issue, taking viewers not only to the most remote corners of the globe but also to the furthest reaches of the mind and deepest crevices of history -- on urgent missions of discovery.

SEASON 11: National Geographic's critically acclaimed documentary series Explorer returns tonight with breakthrough stories designed to magnify curiosity, innovation, news and information in its viewers. Hosted by Phil Keoghan, the all-new 13-episode season transports viewers all over the world, reporting some of the most compelling stories on the planet today.