Mac and a former CO, mentor, and lover go on trial for conspiracy and the murder of her long-estranged husband. Cdr. Ted Lindsey prosecutes, Harm defends Mac, and Mic and Bud defend Mac. Harm and Mic clash over defense strategy.

Chaos rules at the JAG headquarters on Christmas Eve due to a disabling snowstorm, the arrival of a young girl, the admiral's wish to get a substitute flight to Italy, the arrest of a Navy shrink for DUI, and gifts for needy children.