While Mulder is forced to take a vacation he leaves Scully with an assignment to keep her busy until he returns. However, she decides to start living and goes on…

The suspicious circumstances of a toddler’s death leads Mulder and Scully into a Romanian exorcism ritual involving a young boy possessed by his stillborn twin.

Six months after his disappearance, Garth turns up injured in a hospital. Sam and Dean arrive separately to investigate and soon discover that their friend has undergone a startling transformation……