The Secret of Skinwalker Ranch - 4 ª Season

As a new year of investigations begin on Skinwalker Ranch, members of the team confront a secret that Dr. Travis Taylor has had to keep from them for the past two years before conducting an aerial experiment together that reveals shocking and disturbing phenomena.

The team launches an incredible nighttime 200-drone light show experiment above the Triangle and the East Field leading to a startling sighting in the sky and new data that points toward possible answers deep inside the mysterious Mesa.

After discovering new evidence of massive metallic objects buried beneath the Mesa, the team conducts an experiment at the Triangle that leads to one of the most shocking revelations ever seen on Skinwalker Ranch.

The team turns their focus back to the mesa and almost immediately gets more evidence of something buried deep within it. And Brandon returns to the ranch with Utah's Attorney General who is eager to find out who is monitoring the ranch.

As the team begins drilling in search of a metal object buried in the Mesa, they also perform a new experiment at the Triangle that causes startling UFOs to appear on Skinwalker Ranch.