At the request of a little girl, Shawn and Gus get an imprisoned Santa released from jail. They congratulate themselves for saving Christmas but are disheartened to find out that the little girl conned them; Santa is actually her father, a known con artist. Shawn and Gus also overhear the two discuss a possible Christmas Eve heist. They enlist Gus' sister, Joy, to help investigate the secret plans, while she and Shawn keep secret the fling they had ten years ago. Things get especially awkward when Shawn temporarily moves in with the Gusters.