The team invites former members of the U.S. military connected to the infamous "Tic Tac" UAP encounter, and are stunned when they stimulate very similar phenomena to appear above Skinwalker Ranch.

As the team conducts a new aerial experiment over the Triangle Area above Skinwalker Ranch, they find shocking new evidence that the radiation and UAP phenomena they keep detecting may be connected to something deep inside the mesa.

When the team works with a group of astronomy experts to conduct a telescope and rocket experiment at the Triangle Area on Skinwalker Ranch, they have their most incredible UAP encounter yet.

Former NIDS employee, retired Army Colonel John Alexander, visits the ranch and after the Skinwalker team repeat an experiment that he indicates may have opened a portal, they receive a mysterious signal that appears to be an attempt to communicate.

While uncovering evidence of a massive underground cave system said to exist beneath the ranch's mysterious mesa, the Skinwalker team also broadcasts a strange signal recorded on the property over the airwaves of a local radio station and elicit a stunning UAP response.

As the team drills into the solid rock Mesa on Skinwalker Ranch, they discover a mysterious void containing an impenetrable object that causes one of the most dangerous and threatening happenings they've experienced so far.

After recovering metal fragments from a massive, dome-shaped object buried in the Mesa on Skinwalker Ranch, the team conducts a scientific test that reveals shocking results.

When the team conducts their most ambitious experiment yet at the Triangle, they are shocked by what appears in the sky above Skinwalker Ranch.

With winter approaching and time running out, the team performs a three-dimensional scan of Skinwalker Ranch and makes an incredible discovery that may help explain some of the bizarre phenomena they have encountered on the property.

After another season of shocking discoveries, the team reviews all the strange experiences and compelling evidence of the last three years.