Lu goes up against the government when one of her patients turns out to be a suspected terrorist. Meanwhile, Andy treats a deaf woman for rheumatoid arthritis, which has the potential to cripple the hands—silencing her ability to speak.

Dr. Campbell is asked to write an endorsement for a new book about female heart health written by a friend and patient. After the author dies of a heart attack, her husband refuses to publically announce her cause of death because he fears it would hurt sales of the book even though her diet had nothing to do with her death (she had heart disease). Lu is shocked when three high school girls come into the ER with similar and shocking symptoms that point towards poisoning.

With Christmas only a few days away, Lana goes on a frenzy decorating the clinic and organizing a Secret Santa gift exchange. However, when a plan to set up Peter and Kayla backfires, she has a lot of explaining to do. Meanwhile, Lu delivers a virgin surrogate mother's baby but when the parents find out something about the baby, they do the unthinkable. Also, Andy must find a young girl who may die if she doesn't get treated for a deadly disease she may have.