Zak and the crew stick together as they investigate a 127-year-old hospital in Colfax, Washington. The building may be abandoned, but it's far from quiet with reports of visitors hearing strange growls and being attacked by unseen hands.

Zak and the crew rush to a private home in Amarillo, TX, where a family is reaching its breaking point with an aggressive entity. It's the guys' most complex and challenging investigation yet as they search for the truth.