Former U.S. government insiders brought together by rock star Tom DeLonge team up to reveal what the government knows about UFOs. This groundbreaking effort is led by Luis "Lue" Elizondo, who ran the U.S. government's $22 million secret UFO program. Elizondo reveals new details about his Pentagon investigation, including five extraordinary capabilities the bizarre craft may share and chases fresh leads. U.S. Navy fight pilots tell him new details about the "tic-tac"-shaped UFO that was caught on film in 2004. Is this incident an indication of a larger threat to U.S. national security?

A former U.S. Navy radar operator emerges from the shadows to reveal the terrifying day it rained UFOs. For the first time, U.S. Navy personnel unveil new details of the stunning encounter, including a shocking capability that could explain why UFOs are sighted over oceans. Evidence of a U.S. military cover-up emerges, as the team gets a major lead guiding them to an island with a long, clandestine history of UFO activity. Connections between UFOs and secret U.S aircraft must be explored.

The list of military eyewitnesses describing strange and threatening unidentified craft in U.S airspace is growing. And now, a U.S. Navy radar operator has provided something more: Actual coordinates where UFOs appeared and disappeared. Lue Elizondo and a new partner follow the trail, and find that these unidentified craft are still seen. New eyewitnesses provide chilling details, and a correlation to U.S military sightings. As the reports mount, Lue closes in on a location where visitors are not allowed: Ground zero for the sightings.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs. A shocking new encounter pulls them to another part of the U.S.A. where two more military eyewitnesses risk their career to recount what they saw, describing a mass sighting of UFOs within striking distance of one of the most important cities in the U.S. Video, authenticated for the first time, shows bizarre, unidentified craft with incredible abilities, but what the team learns next is chilling: The objects may follow ships and people.

An encounter in the American heartland indicates a disturbing twist to the UFO phenomenon. The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history. A former U.S Air Force Colonel discloses an encounter on Christmas Eve 1980 at a base hiding a secret stockpile of nuclear weapons, while another former Air Force officer describes a UFO-related injury. Was the U.S. military planting UFO misinformation to distract attention from a top secret test, or are they hiding an even more ominous threat?

The investigation has uncovered shocking video evidence, patterns, secret coordinates, and jarring eyewitness testimony about UFOs. The biggest question now is what are they, and are they dangerous? Following a lead, the team goes to an allied European country to probe a case where a UFO allegedly shot down a helicopter. While there, high-ranking military officials drop a bombshell. Former Senator Harry Reid goes on the record, as Elizondo and former Lockheed Martin engineer Steve Justice address the biggest question of all. Will we finally get the truth about UFOs?

Everything we know about UFOs has changed. Now, the all-star team that got the U.S Navy to admit UFOs are real launches a new season of investigations aided by a fresh wave of exclusive, military eyewitnesses. These veterans testify to an extraordinary series of encounters between U.S. Military and UFOs dating back to the Vietnam War. The team attempts to connect the dots. Are these the same unidentified craft shown in declassified U.S. Navy videos, and have they been shadowing American forces for decades?

Former intelligence officer Chris Mellon spearheads an investigation into one of the UFO phenomenon's great mysteries. Giant triangles allegedly capable of incredible acceleration and speeds have been seen all over the world, and even near major American cities. The lingering mystery: What are these objects, and what is their purpose? A new eyewitness may provide the answer: Are triangles mapping the surface of the earth, and for what purpose? Mellon and the team come to a headline-making conclusion.