Countdown - Season 12

The eight-episode fast-paced, nostalgia-fueled series will take viewers on a thrilling ride through America's past. 

The Mega-Brands That Built America is the newest series in History's "That Built" franchise, telling the origin stories of some of the most successful businesses in history: from mega-stores like Costco and Walmart to sporting goods giants like Spalding and Wilson, titans like Ivory Soap, Schick and Gillette, to shipping giants like Fedex and UPS, and countless more of the biggest brand names in history. Each story is told through the "That Built" franchises' signature blend of expert interviews and archival, mixed with original premium recreations. Through the eyes of the visionaries and entrepreneurs behind the brands, the series takes viewers on a journey; starting with how it all began, following the innovations, the failures, and all the incredible achievements that forever changed the way Americans live. It's everything you didn't know about the colossal brands you know so well.

Twelve of Naked and Afraid's toughest and most experienced all-stars take on South Africa's punishing Oribi Gorge in a completely new type of challenge. For the first time ever, survivalists will compete head-to-head through a grueling, multiphase challenge and have their primitive skills tested for the chance to win $100,000. The competition is fierce, as survivalists can use any means necessary - even sabotage - to take home the grand prize. At the end of 45 days, only one can be crowned the Last One Standing.

History's Greatest Mysteries will investigate a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Each program within the franchise will showcase fresh, new evidence and perspectives including never-before-released documents to the general public, personal diaries and DNA evidence to unearth brand-new information about these infamous and enigmatic chapters in history.

Raised by a swordsmith and trained to wield blades with deadly precision, Mizu is a highly skilled warrior — and she's out for bloody revenge.