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As the team conducts their most complex experiment ever at the Triangle, they are stunned as a number of bizarre events unfold before their eyes.
A daring rocket and helicopter experiment results in the team witnessing a phenomenon that might prove an ancient legend about Skinwalker Ranch.
After conducting an experiment that reveals more evidence of incredible phenomena in the skies above Skinwalker Ranch, the team learns that the greatest mystery of the property may actually be located deep underground.