William Stanford Davis

When the University reassigns Sheldon’s (unused) parking spot to Howard, the ensuing turf battle affects the whole gang.

A cabin burns down in the woods revealing two bodies – one of a modern-day witch and one from the days of the Salem Witch Trials – leading Booth and Brennan into the world of Wicca to find a killer. Meanwhile, when Hodgins’ reckless driving gets him and Angela arrested and thrown in jail, Sweets and intern Clark Edison (guest star Eugene Byrn) step into unfamiliar territory to help out the team.

Susan invites Dr. Ron to meet Karl after he finds out about their arranged marriage, Eva and Carlos try to find a beautiful baby to adopt, and Bree -- in order to combat Andrew's extortion attempt -- reluctantly joins AA.

When two guards at a maximum security prison are murdered, the BAU team thinks one or more people within the prison walls may be responsible.

Severed body parts found in a trash bin lead the detectives to more than 200 women whom the victim may have exposed to HIV.

Dr. Halstead's career is in jeopardy when he revives a terminally ill patient, despite an order to not resuscitate; a patient inspires Dr. Choi to seek advice from Dr. Charles; everyone is shocked by a revelation about a member of the staff.