This episode explores whether Alaska's vast wilderness—over 600,000 square miles of desolate terrain—harbors unexplained phenomena linked to extraterrestrial activity. Ancient astronaut theorists point to the state's staggering rate of missing persons (500 to 2,000 annually), electromagnetic anomalies, and frequent UFO sightings as evidence of otherworldly presence. The most famous case is the October 16, 1972 disappearance of U.S. Congressmen Hale Boggs and Nick Begich, whose twin-engine Cessna vanished between Anchorage and Juneau despite what became the most expensive search operation in American history at the time—covering 360,000 square kilometers with over 40 aircraft yet recovering not a single piece of debris. Theorists suggest Alaska's remote landscape, with 17 mountain ranges, 3,000 rivers, and 3 million lakes, provides ideal cover for non-human activity in one of Earth's last true frontiers.
Mainstream explanations attribute Alaska's mysteries to well-documented natural factors: extreme weather, treacherous terrain, vast uninhabited areas where conventional search methods prove inadequate, and the inherent dangers of flying small aircraft over mountainous wilderness. Even the ex-fighter pilot interviewed acknowledges most disappearances have prosaic explanations, though he admits to witnessing phenomena he cannot explain. For curious viewers, the episode's appeal lies in examining how one of America's most isolated regions generates persistent mysteries—whether those ultimately point to the limits of human search capabilities and the power of harsh geography, or to something more enigmatic lurking in the Alaskan wild.
Alaska Triangle
United States · Modern
Theorists argue that the region roughly bounded by Anchorage, Juneau, and Barrow is a hotspot analogous to the Bermuda Triangle, characterized by mass disappearances, UFO sightings, paranormal activity, cryptid encounters, and electromagnetic anomalies that may point to an extraterrestrial presence. The episode does not present a mainstream scientific counterargument but notes that extreme weather and terrain account for many disappearances.
Anchorage
United States · Modern
Anchorage is identified as one of the three vertices of the Alaska Triangle and as the departure point of the 1972 flight carrying Congressmen Hale Boggs and Nick Begich, which disappeared without a trace, prompting the most expensive search-and-rescue operation in U.S. history at that time. The episode frames the disappearance as deepening the mystery of anomalous events in the Alaska Triangle.
Elmendorf Air Force Base
United States · Modern
Theorists use the base as a point of reference, with a former Air Force serviceman stationed there from 1992 to 1995 reporting that local Native legends of strange lights and visiting beings were well known among military personnel, implying institutional awareness of anomalous phenomena in Alaska. No mainstream counterargument is offered.
Mount Denali
United States · Native Alaskan
Ancient Aliens suggests Mount Denali's extreme altitude, remote location, and indigenous legends indicate it as a hotspot for alien activity or an ancient beacon location. The show proposes extraterrestrial craft may use the mountain for navigation or energy purposes.
Mount Shishaldin, Unimak Island
United States · Modern
Theorists argue that pilot Theo Chesley witnessed multiple UFO objects near and emerging from the volcano's crater, including a horizontal disk, a green sphere, and a second object that flew out of the mountain, accompanied by magnetic anomalies that deflected his autopilot. The episode presents Chesley's photographic evidence and eyewitness testimony as credible proof of anomalous extraterrestrial activity around the volcano.