Zach explores the unpredictable and terrifying phenomenon of Sinkholes to determine just what causes them. He visits a Florida man whose brother was killed when their family home was literally swallowed whole by the Earth as well as a series of sinkholes that are forming a series of caves right below the houses of a quaint suburban neighborhood. Whether they be a part of some biblical prophecy or further evidence of mankind's effect on our planet, he's alarmed to discover that all the same, they can strike anywhere in the world, at any time.

Six British couples compete to impress the current, elderly owners of a remote yet breathtaking property in Alaska. The winners will win the property deep within the Alaskan wilderness.

Teenager Marta del Castillo's disappearance made headlines in Spain. Family, friends, police and more weigh in on a case that is still unresolved.

World’s Most Evil Killers delves into the gripping real-life stories of the world’s most terrifying and prolific killers. From Fred and Rose West to Ed Gein – The Clown Killer – and even to The Milwaukee Cannibal. Each episode focuses on one notorious killer and features authentic first-hand accounts of their behavior, from detectives who ran the case, journalists who reported on the stories, relatives, and at times survivors, alongside series experts who provide analysis. These criminologists, crime journalists and psychologists examine how the infamous killers made headlines both nationally and internationally and why they still continue to evoke fear and fascination in the public eye.

On Aug. 17, 2017, Spain suffers two terrorist attacks perpetrated by young people integrated into Spanish society. How could something like this happen?

Many of the most popular taco styles have long, rich, little-known histories. Explore some of them in this eye-opening, mouth-watering food adventure.

With intimate, behind-the-stage access, this documentary-series explores the creative process of extraordinary dancers and choreographers as they rehearse new work and performances.

A unique social experiment that brings together elderly people in a retirement community with a group of 4-year-olds. Could this encounter between young and old help transform the lives of the elderly?

The last decade has seen a revolution in manufacturing. A just in time economy means the products we love are being made on a massive scale in record time. While lightening logistics mean global trade and distribution happens faster than ever. This is the story of how some of today's biggest brands, from Tesla Cars to Gibson Guitars, from Tabasco Sauce to Space Rockets, are made in America.

J.J. kelley and journalist Kinga philipps journey into the wilderness to trace puzzling missing persons cases.

Documentary series exploring life for the people of the fishing village of Mevagissey on Cornwall's south coast, which has bucked the trend that has seen the fishing industry die out in other parts of the county.

Global movie star Chris Hemsworth, despite being in peak superhero-condition, is on a personal mission to learn how to stay young, healthy, strong, and resilient. Undergoing a series of epic trials and extraordinary challenges, he’ll learn firsthand how we can live better for longer by discovering ways to regenerate damage, maximize strength, build resilience, supercharge memory and confront mortality.

Today's high-end high-performance Supercars are an amazing combination of art and science. Super Car Build finds out how they do it and goes behind the scenes at some of the most legendary automotive marques to discover the hidden engineering secrets and keys to each machine's success.

Features conversations with serial killer Dennis Rader from a Kansas maximum security prison, to examine his crimes and psyche.

Using the urgency and intimacy of local news footage, we recount the stories of murder investigations that turned small towns and communities upside down.

In honor of the sci-fi franchise’s 55th anniversary this year and produced by The Nacelle Company, the project will feature interviews with cast, crew and experts as it explores pivotal moments in the franchise’s history, from its inception at Lucille Ball’s production company Desilu to recent film and television adaptations.

Witness the remarkable story of our universe over billions of years and its inextricable link to life on Earth in this sweeping documentary series.

This 20-episode series shares the remarkable, positive change several young heroes are making in their own communities across the country. These inspiring kids have dedicated their lives to selfless acts of bravery and kindness, and now, Marvel celebrates them as the true Super Heroes they are by welcoming them into Marvel's Hero Project.

Basketball players compete in underground, cash-prize tournaments in Mexico. This is their last chance to live their dreams.

Nightmare stories are born from true stories of murder and mayhem. They haunt our childhoods and scare us throughout our lives. Todd Robbins brings to life the real stories that spawned these hair-raising tales.

Original interviews and rare footage show the challenges facing Facebook and its response to charges of disrupting American politics.

A group of experts fan out across the nation to investigate unexplained objects found by ordinary people in their own backyards across America. They study the objects, test them, date them, and deliver real answers about the object's origins.

We follow airline food guru Nik Loukas around the globe as we discover what is going into keeping everyone fed at 35,000ft every day. Our journey takes us behind the scenes with the airlines, as we look at many of the factors that play a part airline food, and what the airlines do to stand out from their competitors and put their personal stamp on the food that's served. From food presentations in Tokyo to a food tasting event in New York, each airline has a unique story to tell. Written by James Mellor

Explore behind the scenes of one of the country's most confounding murder investigations, revealing a tale of evil and a tireless quest for justice in real time.

Academy Award-nominated filmmaker Steve James’ fascinating and complex portrait of contemporary Chicago delivers a deep, multifaceted look into the soul of a quintessentially American city, set against the backdrop of its history-making 2019 mayoral election, and the tumultuous 2020 summer of COVID-19 and social upheaval following the police killing of George Floyd.

From training to launch to landing, this all-access docuseries rides along with the Inspiration4 crew on the first all-civilian orbital space mission.

Amidst the backdrop of the 1979 Iranian revolution, Jimmy Carter's failure to free American hostages sets the stage for Reagan's own hostage crisis.

An arresting and provocative exploration inside the world of one of today's most controversial spiritual teachers and her dedicated followers. Filmed over three years with unprecedented access, it is an unflinching portrayal of the incredible lengths people will go to in their search for connection

Interviews with friends, family and Sally McNeil herself chart a bodybuilding couple’s rocky marriage — and its shocking end in a Valentine's Day murder.

In a "nation of middle-class" the IIT dream involves clearing the world's toughest public exam for guaranteed lifelong success. Life is not an exam though. It's a hustle, one that nobody trains them for. The result? Eternal tumult.

Five girls from India's most impoverished families attend a boarding school designed to create opportunities as they strive for a brighter future.