Abductions: This episode chronicles several close encounters with alien abductees who have been held captive, probed, examined, and had objects implanted in their bodies.
Alien Crashes: In 2008, witnesses in Needles, California, saw military helicopters carry away a glowing flying object. What was the government trying to hide?
UFO Emergency: Investigation into a huge pulsating light spotted in the sky in 1994. A radar operator describes what he saw, explaining he had "never seen anything move so fast".
Giant UFOs: The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots.
Abductions: This episode chronicles several close encounters with alien abductees who have been held captive, probed, examined, and had objects implanted in their bodies.
Alien Crashes: In 2008, witnesses in Needles, California, saw military helicopters carry away a glowing flying object. What was the government trying to hide?
Area 51 Revealed: The team heads to the epicentre of UFO and military conspiracies, Area 51, and interrogate former employees of the alleged storage site for alien spacecraft.
Alien Crashes: In 2008, witnesses in Needles, California, saw military helicopters carry away a glowing flying object. What was the government trying to hide?
Alien Crashes: In 2008, witnesses in Needles, California, saw military helicopters carry away a glowing flying object. What was the government trying to hide?
Aliens at the Airport: The team investigate a strange object seen over Chicago's O'Hare Airport in 2006. Are aliens watching our airports? And if so, could they be malevolent?
Aliens at the Airport: The team investigate a strange object seen over Chicago's O'Hare Airport in 2006. Are aliens watching our airports? And if so, could they be malevolent?
Giant UFOs: The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots.
Giant UFOs: The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots.
UFO Storm: In 2008, the UK's Ministry of Defence released decades' worth of classified UFO files to the public. One month later, UFO hysteria ripped through the country.
UFO Storm: In 2008, the UK's Ministry of Defence released decades' worth of classified UFO files to the public. One month later, UFO hysteria ripped through the country.
Alien Fallout: After seeing an odd flying object in Texas in 1980, a woman was hospitalised as she lost clumps of hair and patches of skin. The team reopens her case.
Lost UFO Files: The team recovers physicist James McDonald's long lost research. Over 20 years, he interviewed hundreds of UFO witnesses and unearthed many government documents.
Arizona Lights: On March 13, 1997, a string of fiery globes were seen over Arizona, but earlier that night some eyewitnesses saw something even more shocking.
Arizona Lights: On March 13, 1997, a string of fiery globes were seen over Arizona, but earlier that night some eyewitnesses saw something even more shocking.
The Real Roswell: The story of a spacecraft supposedly crashing in Roswell, New Mexico, is the most famous case in UFO history. Now, a new theory has emerged.
First Contact: Experts investigate the alleged crash of an alien craft in 1897, debris of which was reportedly thrown down a well while an alien body was buried in a graveyard.
First Contact: Experts investigate the alleged crash of an alien craft in 1897, debris of which was reportedly thrown down a well while an alien body was buried in a graveyard.
UFO Emergency: Investigation into a huge pulsating light spotted in the sky in 1994. A radar operator describes what he saw, explaining he had "never seen anything move so fast".
USOs: The team use high-tech side scan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon.
USOs: The team use high-tech side scan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon.
UFO Surveillance: Ever since Roswell, observers have noted that UFOs allegedly appear in locations that are already full of secrets and mystery. The question is, why?
UFO Surveillance: Ever since Roswell, observers have noted that UFOs allegedly appear in locations that are already full of secrets and mystery. The question is, why?
Dark Presence: There's a growing phenomenon of alleged UFO sightings known as 'Orbs'. Witnesses who see the orbs also report having dreams, premonitions and a deep fear.
Underwater Area 51: The team investigate the highly secretive underwater testing facility AUTEC, said to be used by the US Navy for weapons testing and underwater research.
Alien Harvest: The team investigate eyewitness reports of cattle slaughter allegedly caused by UFOs, and are hot on the trail of a recent mutilation case.
Area 52: Area 51 is considered the ultimate top secret facility, but there is another military site, known as Area 52, where strange phenomena have been witnessed for 10 years.
Underwater Area 51: The team investigate the highly secretive underwater testing facility AUTEC, said to be used by the US Navy for weapons testing and underwater research.
Alien Harvest: The team investigate eyewitness reports of cattle slaughter allegedly caused by UFOs, and are hot on the trail of a recent mutilation case.
Underground Alien Bases: The team investigates rumours of human-alien genetic experiments reportedly going on deep below the New Mexico desert in an underground base.
Grey's Conspiracy: The team investigates disturbingly similar stories of alien abductions from two different countries before tracking down some potential proof in Mexico.
Underwater Alien Bases: Do USOs - Unidentified Submerged Objects - exist? The team examine satellite images of what seem to be underwater landing strips and other strange evidence.
Underground Alien Bases: The team investigates rumours of human-alien genetic experiments reportedly going on deep below the New Mexico desert in an underground base.
Grey's Conspiracy: The team investigates disturbingly similar stories of alien abductions from two different countries before tracking down some potential proof in Mexico.
Alien Crashes: In 2008, witnesses in Needles, California, saw military helicopters carry away a glowing flying object. What was the government trying to hide?
Giant Triangles: The team uncovers rare footage of floating giant triangles hovering over cities. Could these strange sightings be extraterrestrial in origin?
Giant UFOs: The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots.
Aliens at the Airport: The team investigate a strange object seen over Chicago's O'Hare Airport in 2006. Are aliens watching our airports? And if so, could they be malevolent?
Giant Triangles: The team uncovers rare footage of floating giant triangles hovering over cities. Could these strange sightings be extraterrestrial in origin?
Giant UFOs: The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots.
Area 51 Revealed: The team heads to the epicentre of UFO and military conspiracies, Area 51, and interrogate former employees of the alleged storage site for alien spacecraft.
Alien Crashes: In 2008, witnesses in Needles, California, saw military helicopters carry away a glowing flying object. What was the government trying to hide?
Alien Fallout: After seeing an odd flying object in Texas in 1980, a woman was hospitalised as she lost clumps of hair and patches of skin. The team reopens her case.
Aliens at the Airport: The team investigate a strange object seen over Chicago's O'Hare Airport in 2006. Are aliens watching our airports? And if so, could they be malevolent?
Lost UFO Files: The team recovers physicist James McDonald's long lost research. Over 20 years, he interviewed hundreds of UFO witnesses and unearthed many government documents.