When Carl is taken hostage while investigating a bank, the remainder of the team must figure out the motive.
Nina returns, throwing George into confusion, while Kemp offers to help Annie pass to through the door. Mitchell finds out about the truth of the vampire massacre and swears revenge on Lucy.
Sam puts George on the spot while Lucy reacts to sleeping with Mitchell. Annie helps a charlatan and ends up getting personally involved.
George and Mitchell continue their respective relationships with Sam and Lucy while Annie is thrown into the world of motherhood when she is left to look after a baby ghost.
Annie finds herself a new friend who agrees to help her keep death at bay. Mitchell finds himself slipping further into the darkness when his vampire controlling plans take a turn for the worse, meanwhile George tries to put Nina in the past and finds himself a new girlfriend.moreless
Boyd and the team continue to investigate the arson case and the two other possible crime connections to 'The Shepherd'. Will the team discover this person's true identity or will it all turn out to be a part of the imagination of a mentally-ill woman?moreless
A young woman with a history of psychiatric problems kills her family by setting the family home on fire. She admits to the crime, but claims that she was coerced into doing it by a mysterious character known only by the name 'The Shepherd'. Her psychiatrist links her case to similar cases and gets the Cold Case Squad involved.moreless