Still licking his wounds after realizing Sarah continues to have feelings for Bryce, Chuck must assume the cover of being Sarah's husband on a mission to foil a politically connected counterfeiter and yachtsman. Emotions and sea legs are tested when Chuck, Sarah and Casey have to head to the marina to scuttle a plot that also puts an unwitting Morgan and Anna squarely in the crosshairs. Meanwhile, It's time for the annual Buy More holiday party, but the party comes with lots of rules from Big Mike.