After ten years as an FBI profiler, Frank Black relocates from Washington to his hometown Seattle with his wife, Catherine, and their daughter, Jordan. However, a series of sexual homicides coaxes him from retirement. He offers his support to Lt. Bob Bletcher, a former colleague with Seattle's Homicide Unit, and is in turn offered the resources of the mysterious Millennium Group, a corps of former law enforcement officers. Blessed - or afflicted - with an uncanny ability enabling him to see the world through the killer's eyes, Frank must pursue the murderer through Seattle's underground scene and stop his killing spree.

Sabrina is forced to attend a family affair on Halloween, so she sends a clone of herself to a party she was supposed to attend. Unfortunately, the simple-minded clone agrees with everything anyone suggests, which eventually leads to her streaking through Harvey's backyard. Meanwhile, the real Sabrina tries to ditch her snobby cousin Marigold and her bratty daughter Amanda (Emily Hart), and later gets a heartwarming surprise when she discovers that as a witch, she can talk to a deceased loved one for an hour on Halloween night.

Nightcrawler gets a mysterious message. He is informed that his birth mother (whom he never knew) is in trouble. He turns to the X-Men for assistance. Jubilee is baffled that Nightcrawler wants to help the mother who abandoned him -- she has never known her birth parents and feels pretty hostile toward them, whoever they are. Nightcrawler admits there has been pain, but his faith in God has helped him overcome her rejection. The plot thickens when one of the team members recognizes Nightcrawler's mother's voice. There are more 'bloodlines' here than anyone imagined, including the Friends of Humanity who arranged this 'reunion' in the first place.

A father takes revenge on the man who supplied his daughter with drugs as Josh struggles to save the life of a girl injured in the middle of nowhere.