NCIS, "Blood Brothers"
Although finding out your spouse cheated doesn't exactly promote holiday cheer, having a colleague and friend there to support you does. Gibbs proved he was more than just the boss after he traveled to Oklahoma to make sure Bishop was fine after she learned her husband was having an affair.
To see Gibbs extend a helping hand, watch "Blood Brothers" on CBS All Access.
Watch NCIS on Tuesdays at 8/7c on CBS and CBS All Access.