The world of illegal dog fighting is explored by Grissom and the rest of the team when they take on the case of a wealthy socialite who was murdered. Meanwhile, Warrick struggles to clear his name in the recent exotic dancer murder case.

In this Christmas-themed episode, Sam and Dean follow the trail of an "anti-Santa" that abducts its victims by using their chimneys. Dean tries to get Sam to celebrate Christmas like they used to but Sam doesn't want to accept that it could be the last one they'll spend together.