Faith

The team works to solve the murder of a Reverend's son and they soon figure out he may be involved in a hate crime. Gibbs' father returns for Christmas and Gibbs tries to figure out why he has a sudden change in behavior right before the holidays. An old friend of Abby asks McGee for a favour - her nephew (who is living with her) wants to see his mother for Christmas, who is currently on a Marine ship in the Indian Ocean, but only McGee can make it happen. Gibbs figures out that it was the victim's brother who was the culprit, since he couldn't accept his brother's conversion to Islam. Gibbs also discovers that his father killed a man attempting to rob his store and he came to ask for advice on how to deal with killing another man.