Sarah finds out the truth behind Heather’s aggressive alter ego.
The team are called to help a young woman thought to be posessed by a demon, and Sarah finally finds a clue in her search for who funded the study.
The mystery of the Anderson case is revealed, and Sarah finds out just how determined she is to get answers.
Sarah and the team start a new investigation into the Anderson’s home and the shadowy presence their daughter reports seeing inside.
Sarah finally finds out the truth behind Joe MacDonald, and hits her first dead end in the search for the enigmatic funders of the study.