Oleg Zatsepin

Bridget asks Larry for a favor on behalf of her son. Larry earns unexpected gratitude in a buffet line, and realizes that tips are better than favors.

The BAU believes two unsubs may be operating at the same time, when victims killed in two drastically different ways are discovered in the same city. Also, the team grapples with keeping Reid safe in prison.

A body found on a Marine firing range leads the team to discover a Mafia dumping ground.

J.D. and Elliot compete for the position of chief resident; Carla feels like she's losing control when everyone starts listening to Dr. Clock's advice; Dr. Cox and Turk have trouble removing a light bulb from a patient's posterior.

When Angie's parents, Vic (EMILIANO DÍEZ) and Emilina (SONIA BRAGA - "American Family," "Kiss of the Spider Woman"), visit for Christmas, George thinks they still believe that he is not good enough for their daughter. But he shows he can take care of his family without their help and battles with Vic for the best Christmas ever.