Sam contacts Dean after being missing for a week. When they reunite, Dean finds Sam covered in blood and with no recollection of what happened.

In this Christmas-themed episode, Sam and Dean follow the trail of a creature that abducts its victims by using their chimneys. Dean would like to celebrate Christmas like they used to when they were children, but Sam isn't exactly feeling the Christmas spirit.

The angels want Anna dead, so Sam and Dean go on the run with the frightened girl, determined to discover the secret that has set the furies of Heaven on her.

Sam decides to stop hunting but has a hard time after he receives a surprise visit. Dean and Castiel try to find the Archangel Raphael in their bid to stop the Apocalypse.