Preston James Hillier

Chandler and Monica agree to give each other homemade presents for their six-month anniversary, but neither of them has anything prepared. Ross tries to teach martial arts to Rachel and Phoebe. Joey hires a look-alike.

A drug dealer mysteriously collapses during a sale; House and Wilson compete for a new neighbor's affection; Chase, Thirteen and Taub play a practical joke.

As the BAU investigates targeted killings in Tampa, they also deal with their own feelings about the loss of Prentiss.

Beginning February 8, “Grey’s Anatomy” enters a three-episode story arc that will challenge the interns of Seattle Grace -- and "Grey’s" fans as well -- like never before. Elizabeth Reaser (Independent Spirit Award nominee for "Sweet Land") guest stars as a patient over multiple episodes.

Patrick Jane and the CBI team investigate the murder of a mobster who was in the witness protection program.