A couple from California are puzzled by a motionless object in the sky; a shadow figure haunts a restaurant; two motorcyclists are chased by a roadside specter.
Spirits target a ghost hunter at an abandoned rec center in Florida; a strange humanoid creature flies over Scotland; two friends spot the Crossett lights.
Don Wildman investigates the odd disappearance of a sacred effigy; a look at the first African-American baseball player; a look at a statue of a New York mayor.
Astronaut Leroy Chao's experience in space, the Apollo capsule's pictures of a flying saucer and shadows caught on film following the shuttle are featured.
A disappearing piece of the sun, a dark vessel appearing below the Shuttle Endeavor and thousands of unidentified objects captured by Hubble are presented.
A far-off planet that could have an atmosphere similar to Earth's, an inexplicable glowing light from the moon and why Mars has blueberries are featured.
A look is taken at spaceships powered by A-bombs, fake rings around a star, an incomplete transmission from the moon and lightning that talks to itself.
A look is taken at an object above an Air Force test range that was reported as a flying saucer and swirling gases on Saturn that formed a perfect hexagon.
Astronauts evacuate when a strange object is seen moving towards the International Space Station; a secret agent goes undercover to recover missing moon rocks.
Ben Hansen investigates claims that the U.S. government is hiding alien technology; a report claims that an astrophysicist worked on parts of downed UFOs.
Ben Hansen visits New Mexico to determine if an underground alien base can be found in the small town of Dulce, which has had reports of UFO sightings.
Ben Hansen examines a woman's claim that she was approached by an alien in her own backyard, and he tries to connect the story to an earlier encounter.
Ben Hansen investigates claims that the U.S. government is hiding alien technology; a report claims that an astrophysicist worked on parts of downed UFOs.
Ben Hansen visits New Mexico to determine if an underground alien base can be found in the small town of Dulce, which has had reports of UFO sightings.
Ben Hansen examines a woman's claim that she was approached by an alien in her own backyard, and he tries to connect the story to an earlier encounter.
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