Genre: Documentary, Nature
Premise: 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.
S02, E02 (First Aired: Feb. 12, 2006)
Examining the violent gang MS-13, which began on the streets of Los Angeles during the 1980s and has rapidly spread to 33 states and six countries.
S06, E15 (First Aired: Aug. 17, 2010)
The dropping of the first atomic bomb on Hiroshima on August 6, 1945.