The UFO Before Roswell
The hunters take a look at a little-known UFO encounter off Maury Island, Washington which happened two weeks before the famous Roswell, New Mexico crash.
The team checks out the reports of unidentified submerged objects (USOs), one of which reportedly caused the crash of a single-engine aircraft, off the coast of Santa Catalina Island, California.
The team looks back into the famous Betty and Barney Hill alien abduction case and later observes the surgical removal of a supposed alien implant from a man's leg.
Crash and Retrieval
The team looks into the 1974 Coyame and 2007 Xilitla UFO crash cases in Mexico, where the Mexican and U.S. military reportedly recovered wreckage material.
Military vs. UFOs
The team reopens the files on the famous 1956 RAF Bentwaters and 1980 Rendlesham Forest UFO incidents, and the supposed cover ups that followed.
Cops vs. UFOs
The hunters look at police reports from Florida and the United Kingdom that involve patrolmen encounters with UFOs.
The team looks into lingering rumors that advanced military aircraft, such as the SR-71 Blackbird and B-2 Spirit Bomber, were designed from reverse engineered alien technology.
The team looks into New York's Hudson Valley; Sedona, Arizona; and Britain's Stonehenge, to determine what makes them purported UFO hotspots.
The team compares the strange encounters of two men, one from Cleveland, Ohio and the other from Suffolk, Virginia, to see if there is evidence that they've had contact with extraterrestrials.
Invasion: Texas 2008
The team investigates the January 2008 mass UFO sightings between Fort Worth and Houston, Texas.
Investigation into an Iranian and a Peruvian fighter pilot's claims of combat engagements with UFOs.
The team interviews military air traffic controllers who have come forward about tracking UFOs over restricted airspace and the security alerts that followed.
The NASA Files
The team interviews former NASA astronauts, engineers, and scientists and delves into video footage to see if the space agency knows more about UFOs than it is letting on.