Al Vicente

The BAU team investigates a series of murders in Bakersfield, California. Also, the team welcomes new agent Kate Callahan into the BAU fold, who assists them in their efforts in solving the cases.

Michael uncovers unbelievable news when he seeks revenge for Sara's death, Michael and Lincoln receive an offer from Homeland Security that they cannot refuse, Mahone suffers a terrible loss, and T-Bag is abandoned during his flight to freedom.

Stanley and Maggie hatch a plan to murder the Freaks. Gloria hides the evidence of Dandy's gruesome new hobby. A health scare reveals Desiree may not be the oddity she once thought.

Castle and Beckett investigate the murder of Will Medina, the assistant curator of the Natural History Museum. The Museum's personnel believe his death is related to the curse of the ancient Mayan tombs.

Juliette works to hide a secret that could stop her getting a movie role, and Rayna and Luke try to set a wedding date.

Severide gets wrapped up in an Illinois State Police investigation after discovering illegal guns on a call. A bird harasses Mouch on the apparatus floor. Kidd keeps an eye on Carver as his attitude worsens.