Monica and Chandler decide to throw a costumed Halloween party. Phoebe runs into Ursula, who's getting married next week, and invites her and her fiancé to the party.
While all the other kids at school are exchanging Valentine's Day cards, Chris receives a series of "I hate you" cards from the school bully, but love is in the air as he develops a "bus crush" on Tangee.
The BAU heads to Austin to investigate victims found there with their watches set inaccurately, a clue which may connect the crimes.
A toy from their childhood leads to a rift between Deacon and Doug. Meanwhile, Carrie tries to give her father a great Christmas gift, but this proves hard to do when everyone thinks of the wrong gifts they are receiving, altering their original gift choices.
An old family friend, Army Corporal John Sydney (Dabney Coleman), beseeches Gibbs to join him on a road trip to search for a missing military I.D. bracelet. Also, a Navy Lieutenant in NCIS protective custody is poisoned by an infamous drug dealer.