Monk falls under a charismatic cult leader's spell while solving a murder.

McGarrett asks Catherine to help find his mother; the teams seek assistance from August March (Edward Asner) with a deadly art heist.

Buffy starts behaving strangely after sharing a pitcher of Black Frost beer with a group of fellow college students at the campus pub where Xander bartends.

Riley considers her forgotten dream of becoming a singer; Lacey is suspicious of Dale; Riley works on Kyle's defense with his attorney; Evan continues training at the police academy; Selena teases Derek about his frequent client.

A Halloween party at a campus frat house takes a frightening turn with the sudden appearance of blood-sucking bats, zombies, and a demon that plays on everyone’s innermost fears.

As Buffy begins a new relationship, Spike returns to Sunnydale in search of a fabled ring which allows vampires to walk unharmed in the light of day.

A series of nightmares concerning a soul-sucking demon leave Buffy convinced that the best way to deal with her overly perky college roommate is to simply kill her.

Buffy begins a relationship with Riley Finn unaware that he is part of a military organization tracking down and experimenting on the demons and vampires of Sunnydale.