Brian Chenoweth

"Grey's Anatomy's" three-episode story arc continues with a part two that will challenge the interns of Seattle Grace -- and "Grey's" fans as well -- like never before.

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.

Bunchy's wedding is threatened when he is arrested. Ray must find his father and take him to the police station to get Bunchy to the altar.

Mulder and Scully cross paths with two women, who are identical and have followed each other across 17 states in the last three years causing chaos and mayhem wherever they are.

Larry has a scheduling conflict, takes issue with work associates and hosts a pair of ungrateful house guests.

While Phoebe and Joey wait at a fancy restaurant for their friends' arrival to celebrate Phoebe's birthday, Rachel is delayed because she is afraid to leave Emma with a babysitter. Monica and Chandler also fail to arrive on time after having a row about Chandler's urge to resume smoking and then giving in to other urges.