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.

After choosing two more intriguing cases to investigate, Bill, Austin and Chi Lan travel to Chopaka Lake, WA, to investigate a compelling video that many claim is solid proof of a Bigfoot in the remote area. With many experts saying that no human could make such a dash across rugged terrain, Austin is put against the clock to put that theory to the test. Later, with Bill overhead in a spotter plane with a thermal imager, Austin and Chi Lan find themselves surrounded by mysterious heat sources. Meanwhile in upstate Washington, Ben, Jael and Larry take on a case that has divided the paranormal community for over ten years - the staggering case of Dr. Reed and the woodland Alien attack. Using their special effects skills to the maximum, the team try to recreate the infamous video, before Ben puts his FBI training to the test in a one on one interrogation of the elusive Dr. Reed.