Michael Canavan

With Derek away, Meredith spends time with Amelia and finds out her true feelings about her time in Seattle. Bailey deals with the ramifications of her actions and Callie receives devastating news. Meanwhile, the residents panic after hearing that one of them will be fired.

The BAU team investigates the mass murder of college students, similar to wartime methods used by a Native American tribe long ago.

The cigarette smoking man offers to show Scully the cure for all diseases if she travels with him, but on one condition: Mulder must not know about her trip.

Kitty finds herself torn between two men, Justin's new job is more than he bargained for, and Sarah and Joe face their greatest challenge yet as parents.

Sydney starts to question Will's identity after he's arrested for espionage as a suspected double. Sark and Irina plot to recover the Rambaldi heart.

A casting change puts Medellin back on the table for Vince. Ari and Nick Rubenstein must broker the deal between Amanda and the studio by day's end, but because it's Yom Kippur they can't use the most important tools of their trade (cell phones) until after sundown.