Two marines chase a Santa who is collecting money for charity. The chase moves into the department store and the marines finally corner the “Santa” in a dressing room and arrest the so-called Santa, Petty Officer Jennifer Coates.
Christmas Eve finds the Roberts preparing to host a dinner party with Harriet ill. Mac awaiting the arrival of three Saudis who don’t observe the holiday and Harm getting way laid trying to fly an F-14 home in time for the dinner.
Chaos reigns during the three days leading up to Bud and Harriet's (Patrick Labyorteaux, Karri Turner) wedding. With David James Elliott and Catherine Bell.
The night before Christmas, Harm visits the Vietnam War Memorial in his father's memory. A woman is also there and Harm is surprised to discover that she was a friend of his father.
Harm and Mac learn that the renegade Marine captain organized a group of local tribesmen to hunt down Osama Bin Laden. Meanwhile, stateside, Big Bud tries to enlist Bud's help to avoid being called back to active duty.
