Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

Don explores top-secret military and government tunnels and looks into classified technology that could be used to build entire cities...right under our feet.

While most people think of San Francisco as a haven for peace-loving hippies, this city by the Bay is actually one of the biggest military defense installations in America. We'll take you beneath its picturesque hills and uncover the biggest ammunitions depot on the West Coast before plunging into a deadly arsenal that once stored nuclear missiles with more than six times the destructive power of the atom bomb dropped on Hiroshima. From the secret Civil War fortification buried beneath Alcatraz to the human trafficking tunnels winding below Chinatown, San Francisco's underground is evidence of its sordid past.

100 years ago Portland, Oregon was America's Sodom, a city full of vice, considered the most dangerous port in the world. It was a place where you could get drugs or booze or wake up trapped in a cell beneath the earth. Expanses of underground tunnels enabled slave traders, opium runners, and speakeasies to flourish. Join host Don Wildman as he ventures beneath modern Portland into the nefarious world of fight clubs, slave tunnels, and gambling dens.

Welcome to Las Vegas, America's Sin City where casinos have made security their highest priority. Join hosts Don Wildman as he uncovers underground vaults, secret surveillance nerve centers, and how the latest technology beats the cheaters. Don shows how a massive engineering feat transformed the city from a barren desert into a mobster metropolis where thieves ran the show from underground tunnels dating back to Prohibition. Vegas is the only city in the world where you can be in Egypt one moment and Italy the next, thanks to a secret underground.

The underworld of New York City is a living, breathing complex of engineering, history, and secrets that could only exist in America's largest city. From a classified World War II site where death awaited unfortunate trespassers to the original rivers and aqueducts that led to this great city's ascent, New York City may just have more stories below ground than it does above. Join host Eric Geller as he braves this massive urban labyrinth where the past, present, and future collide.

He was the mastermind of the most notorious murders in U.S. history. He terrified the world and plunged the city of Los Angeles into a state of paranoia and fear. He's Charles Manson, and the deserts around Los Angeles were his home--where he hoped the underground would be his haven. But Manson and his followers weren't the only dangers lurking beneath the streets of LA. We'll take you below the most congested avenues of this classic American city, into the tunnels where corrupt cops secretly ran the city, and where the largest subway system in the world lies in waste. From earthquakes to UFOs, Los Angeles--population 9 million plus--has to be ready for anything. With military bunkers protecting our shores and subterranean disaster-relief war rooms surveying the next big quake, LA's underground holds the key to its survival.

Inflicting over $80 billion in damage, and causing the deaths of over 1,800 people, Hurricane Katrina was among the greatest engineering disasters in US history. But was Katrina the "big one" New Orleans had been waiting for? Many believe the "perfect storm" is yet to come. If and when the big one does hit, will New Orleans be ready? The answers are in the underground. From the Army Corps' latest levees to last-ditch efforts to save New Orleans' vanishing wetlands, we're going deep into New Orleans' underground to see where New Orleans stands, and if it stands a chance.

Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

Don explores top-secret military and government tunnels and looks into classified technology that could be used to build entire cities...right under our feet.

While most people think of San Francisco as a haven for peace-loving hippies, this city by the Bay is actually one of the biggest military defense installations in America. We'll take you beneath its picturesque hills and uncover the biggest ammunitions depot on the West Coast before plunging into a deadly arsenal that once stored nuclear missiles with more than six times the destructive power of the atom bomb dropped on Hiroshima. From the secret Civil War fortification buried beneath Alcatraz to the human trafficking tunnels winding below Chinatown, San Francisco's underground is evidence of its sordid past.

100 years ago Portland, Oregon was America's Sodom, a city full of vice, considered the most dangerous port in the world. It was a place where you could get drugs or booze or wake up trapped in a cell beneath the earth. Expanses of underground tunnels enabled slave traders, opium runners, and speakeasies to flourish. Join host Don Wildman as he ventures beneath modern Portland into the nefarious world of fight clubs, slave tunnels, and gambling dens.

Welcome to Las Vegas, America's Sin City where casinos have made security their highest priority. Join hosts Don Wildman as he uncovers underground vaults, secret surveillance nerve centers, and how the latest technology beats the cheaters. Don shows how a massive engineering feat transformed the city from a barren desert into a mobster metropolis where thieves ran the show from underground tunnels dating back to Prohibition. Vegas is the only city in the world where you can be in Egypt one moment and Italy the next, thanks to a secret underground.

The underworld of New York City is a living, breathing complex of engineering, history, and secrets that could only exist in America's largest city. From a classified World War II site where death awaited unfortunate trespassers to the original rivers and aqueducts that led to this great city's ascent, New York City may just have more stories below ground than it does above. Join host Eric Geller as he braves this massive urban labyrinth where the past, present, and future collide.

He was the mastermind of the most notorious murders in U.S. history. He terrified the world and plunged the city of Los Angeles into a state of paranoia and fear. He's Charles Manson, and the deserts around Los Angeles were his home--where he hoped the underground would be his haven. But Manson and his followers weren't the only dangers lurking beneath the streets of LA. We'll take you below the most congested avenues of this classic American city, into the tunnels where corrupt cops secretly ran the city, and where the largest subway system in the world lies in waste. From earthquakes to UFOs, Los Angeles--population 9 million plus--has to be ready for anything. With military bunkers protecting our shores and subterranean disaster-relief war rooms surveying the next big quake, LA's underground holds the key to its survival.

Inflicting over $80 billion in damage, and causing the deaths of over 1,800 people, Hurricane Katrina was among the greatest engineering disasters in US history. But was Katrina the "big one" New Orleans had been waiting for? Many believe the "perfect storm" is yet to come. If and when the big one does hit, will New Orleans be ready? The answers are in the underground. From the Army Corps' latest levees to last-ditch efforts to save New Orleans' vanishing wetlands, we're going deep into New Orleans' underground to see where New Orleans stands, and if it stands a chance.

Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

Don explores top-secret military and government tunnels and looks into classified technology that could be used to build entire cities...right under our feet.

While most people think of San Francisco as a haven for peace-loving hippies, this city by the Bay is actually one of the biggest military defense installations in America. We'll take you beneath its picturesque hills and uncover the biggest ammunitions depot on the West Coast before plunging into a deadly arsenal that once stored nuclear missiles with more than six times the destructive power of the atom bomb dropped on Hiroshima. From the secret Civil War fortification buried beneath Alcatraz to the human trafficking tunnels winding below Chinatown, San Francisco's underground is evidence of its sordid past.

100 years ago Portland, Oregon was America's Sodom, a city full of vice, considered the most dangerous port in the world. It was a place where you could get drugs or booze or wake up trapped in a cell beneath the earth. Expanses of underground tunnels enabled slave traders, opium runners, and speakeasies to flourish. Join host Don Wildman as he ventures beneath modern Portland into the nefarious world of fight clubs, slave tunnels, and gambling dens.

Welcome to Las Vegas, America's Sin City where casinos have made security their highest priority. Join hosts Don Wildman as he uncovers underground vaults, secret surveillance nerve centers, and how the latest technology beats the cheaters. Don shows how a massive engineering feat transformed the city from a barren desert into a mobster metropolis where thieves ran the show from underground tunnels dating back to Prohibition. Vegas is the only city in the world where you can be in Egypt one moment and Italy the next, thanks to a secret underground.

The underworld of New York City is a living, breathing complex of engineering, history, and secrets that could only exist in America's largest city. From a classified World War II site where death awaited unfortunate trespassers to the original rivers and aqueducts that led to this great city's ascent, New York City may just have more stories below ground than it does above. Join host Eric Geller as he braves this massive urban labyrinth where the past, present, and future collide.

He was the mastermind of the most notorious murders in U.S. history. He terrified the world and plunged the city of Los Angeles into a state of paranoia and fear. He's Charles Manson, and the deserts around Los Angeles were his home--where he hoped the underground would be his haven. But Manson and his followers weren't the only dangers lurking beneath the streets of LA. We'll take you below the most congested avenues of this classic American city, into the tunnels where corrupt cops secretly ran the city, and where the largest subway system in the world lies in waste. From earthquakes to UFOs, Los Angeles--population 9 million plus--has to be ready for anything. With military bunkers protecting our shores and subterranean disaster-relief war rooms surveying the next big quake, LA's underground holds the key to its survival.

Inflicting over $80 billion in damage, and causing the deaths of over 1,800 people, Hurricane Katrina was among the greatest engineering disasters in US history. But was Katrina the "big one" New Orleans had been waiting for? Many believe the "perfect storm" is yet to come. If and when the big one does hit, will New Orleans be ready? The answers are in the underground. From the Army Corps' latest levees to last-ditch efforts to save New Orleans' vanishing wetlands, we're going deep into New Orleans' underground to see where New Orleans stands, and if it stands a chance.