Christmas has always been Carter Pierce's favorite holiday. But with his partner, Dr. Vaughn Bennett, working crazy hours in the ER, it's difficult to make any kind of plans. So when Christmas Day rolls around, Carter expects it will be just another day when he wakes up. Little does he know that Vaughn has a huge surprise up his sleeve-one that will change their lives forever.

"Carter loves Vaughn. Vaughn loves his job. Things are about to change."