They have matched wits with the smartest of criminals and the darkest of minds, but nothing will prepare Bobby Goren and Alex Eames for their most challenging season yet. Twenty-two compelling episodes.

Sam Winchester grew up hunting creepy, demented, unexplainable, unearthly and terrifying things. But law school, safety and normalcy beckon him until Sam's estranged brother appears with troubling news: their father, a man who's been hunting evil for 22 years, has disappeared. So now, to find him, the brothers must hunt what their father hunts and Sam must return to the life he thought he'd left behind.

"Tokyo is abuzz with persocoms - humanoid computers that are virtually perfect. The socially and technologically inept Hideki is dying to get his hands on one. When he finds Chi abandoned in the trash, she's cuter than any current model he's ever seen, but when he gets her home and turns her on, she has no data and only a single learning program installed. While Hideki puts his whole heart into teaching Chi the ins and outs of humanity, a mystery...

New York City's 15th Precinct is as hectic as ever. While Lieutenant Fancy continues as precinct commander, Detective Andy Sipowicz, although still a bit rough around the edges, has mellowed with the birth of his son. Detectives Bobby Simone and Diane Russell take the next step in their relationship, James Martinez becomes the Squad Delegate, and Greg Medavoy considers becoming a surrogate father. But one thing that hasn't changed is the squad's determination...