For years, the team has been tracking an elusive prey only seen at night--ships, shaped like triangles, impossibly huge, and videotaped over cities...

The team looks into the claims of undercover investigators and former military personnel that an alien base exists somewhere below the New Mexico...

The team studies two alleged alien abduction cases with alarmingly similar details that involve encounters with the creatures known as "Greys," and...

The hunters delve into the mountain of reports from the Gulf Breeze, Florida UFO sighting wave of the early 1990s and then looks for possible...

The team ventures to Germany and Poland to investigate rumors that the Third Reich had reverse engineered alien technology and may have produced a...

The team investigates the phenomena of cattle mutilations, investigating a recent slaughter and following patterns of other cases, as well as...

Investigating so-called "trace cases," the team studies supposed physical evidence left behind after various UFO sightings, from a strange glass-like...

The investigators monitor the activity of the AUTEC (Atlantic Undersea Test and Evaluation Center), which is used by the U.S. Navy for underwater...

The investigators analyze various UFO cases from around the world through the Freedom of Information Act, separating fact from fiction to determine...

The team investigates the phenomena of orbs, (mysterious balls of light that appear to coincide with earthquakes), and travel to areas of orb...

The team tries to gather insight on the military's "First Response" protocols, the alleged recovery and cover-up procedures that are followed in case...

The hunters delve into cases involving witness interrogation by mysterious agents known as the "Men in Black" (MIBs), who sometimes appear suddenly...

Continuing on the trail of the MIBs, the hunters follow the agent's supposed connections to a remote, military testing facility, the Dugway Proving...