Ben and the team take on two cases that have baffled the paranormal community for years. In Indiana, a ghost hunter inadvertently captured what she thinks is the ghost of a civil war soldier while investigating a desolate abandoned cemetery. Ben and his team use everything at their disposal to eliminate the possibility of a hoax or even a natural phenomenon, but explanations are hard to come by in this case. In Colorado, a series of shocking cattle mutilations have left ranchers in the area speculating that something may be coming from the sky to abduct and experiment on their livestock. The team tackles the case using a series of scientific methods that seek to determine whether there could be a more natural explanation for the case, with surprising results.

After choosing two compelling cases to investigate, Ben, Austin and Chi-Lan travel to Alton, Illinois to test a mysterious cloud of mist that appears in a video taken inside the historic - and reportedly haunted - McPike Mansion. They test several different theories to see if the original video could have a natural explanation or if the mist is actually some kind of ghostly entity. Bill, Jael and Larry take off to Northern California to investigate a strange UFO case in Fremont. They attempt to replicate the delta shaped light formation seen in the footage by launching a variety of illuminated objects into the sky and obtain surprising results.

In a chilling new episode, Bill, Chi-Lan and Larry travel to Victor, New York to investigate the haunted Valentown Museum where a full-bodied ghost was purportedly caught on videotape. When strange things begin to unfold in the middle of the night, the team struggles to find a palpable explanation. Meanwhile, Ben, Jael and Austin head to Texas to get to the bottom of a mysterious clip showing what appears to be a witch or flying humanoid soaring along a ridgeline. After a series of inventive experiments the team thinks they found their answer.