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Food will tell the unknown stories of innovation and rivalries behind food industry tycoons Milton Hershey, John and Will Kellogg, Henry Heinz, C.W. Post, the McDonald brothers and more.

"60 Days In" offers an unprecedented look at life behind bars at Indiana's Clark County Jail. Seven ordinary people volunteer to live among its general population for 60 days, without fellow inmates or staff knowing their secret.

Missouri's Lake of the Ozarks sees a population surge during summer, with millions of tourists flocking to the area. Local law enforcement faces challenges in maintaining order and ensuring safety in this vibrant vacation destination.

Millions enter the US through airports each year, and hid amongst them are a stream of contraband. DHS will stop at nothing to catch these smugglers.

Life-long birder Christian Cooper takes us into the wild, wonderful and unpredictable world of birds.

Caribbean Corridor agents combat global cocaine trade. AMO and HSI seize millions in cocaine from traffickers in Puerto Rico and nearby islands, dismantling criminal networks pushing drugs to U.S. and Europe.

Rookie correctional officers step foot into New Mexico prison and are taught to learn ways of handling criminals and their toughness.

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre geological occurrences that offer glimpses into our history.

Following people who get arrested and get booked into the system. What it feels like top be arrested, finger printed and appear in front of judge to see if they will get bonded.

Spinoff of "Food That Built America" that focuses on the fine detail that the main series didn't cover about the fascinating history of companies and innovators who built America's favorite food and beverage brands.

Six undercover participants immerse themselves along I-65 drug corridor, exposing cartel infiltration in the Heartland. Offering a 360-degree view, they tackle the crisis from multiple angles.

ALASKA AIRCRASH INVESTIGATIONS follows five NTSB members as they risk their lives in extreme environments to access remote crash sites in the unpredictable Alaskan wilderness. From dense forests to raging rivers, there is no place impenetrable for the "Go Team." Every investigation tests these brave men and women, from the seasoned veterans to the rookies who are just beginning their careers in air safety.

In THE REAL STORY WITH MARIA ELENA SALINAS, investigative journalist Maria Elena Salinas peels back the layers of national headline-making crimes in search of new evidence, unheard perspectives, and updates to the cases.

What happens when some of the finest investigators in the country come out of retirement to put their collective talents and years of experience towards the most notorious cold cases in Tulsa?

Chasing storms and tornadoes Checking weather patterns before storm hits

A two-part documentary totalling four hours about a cold case murder concerning a young woman named Reet Jurvetsen. Originally from Montreal, Canada, the woman was found stabbed 150+ times in November 1969 by the side of Mulholland Drive, down the road from where the Tate murders occurred months earlier. In this program, the cold case detectives note that the identity of the victim was uncovered recently (previously known as "Jane Doe #59") and that the MO is similar to the Manson murders, so they go about interviewing several people associated with the Manson family and murders in an attempt to link Reet's death with them. They also attempt to find out if John Haught's so-called suicide, which occurred 10 day's prior to Reet's murder was really a suicide. In the process, the probable true motive for the LaBianca murders is revealed. Throughout the program, there are excerpts played from recordings of phone calls a man named Marlin had with Charles Manson during his years of incarceration, thus the title.

A 14-foot giant mako shark is spotted in the waters of Portugal's Azores region; underwater cinematographer Joe Romeiro and his wife, search the teeming depths around the ancient islands to capture the beast on film.

Hosted by esteemed television journalist Lauren Sivan, "Deadly Power" will examine the twisted and true stories where people in positions of power and prominence took advantage of their authority to commit heinous acts of crime, all stemming from their control and unyielding power. Through emotional testimonials, never-before-seen interviews and dramatic reenactments, "Deadly Power" will reveal the sordid details of some of the most notorious cases of exploitation and highlight gripping firsthand accounts from the victims and their families who will stop at nothing to get the justice they deserve.

A young African American woman vanished in 2011. Investigative reporter Shawndrea Thomas and retired deputy Police Chief Joe Delia attempt to unravel the mysterious unsolved case in the hope of finding justice for her and her family.

399: Queen of the Tetons follows the life of world famous Grizzly 399 as she attempts to raise four cubs. 399 makes choices amidst a warming climate, human encroachment and disputes over her Endangered Species protections.

In February 1945, Associated Press photographer Joe Rosenthal captured the image of five U.S. Marines and one U.S. Navy Corpsman hoisting the American flag atop a mountain in Iwo Jima. The identities of these men have been accepted for 70 years, but new evidence shows that one Marine was never identified. We finally reveal an unnamed hero using modern science to examine the iconic photo in ways that we have never seen before. Then we look at the battle and the stories of the men who risked it all for their country and their brothers in arms.

A group of women tackle gender issues by disguising themselves as men.

Park Rangers protect the wildlife in Great Smoky Mountain National Park.