At Detroit's annual Dream Cruise, the Golds hope to cash in on automotive merchandise, but when Les passes on an offer for a historic Chevy sign, Seth goes behind his back and purchases it.

Hope comes to Maura with an apology and to ask a favor while Jane worries about Casey's upcoming spinal surgery. Tommy shows off baby T.J. but is soon overshadowed when a building collapses and traps loved ones inside.

When Nate takes a case linked to his son's death, he leads the team into their riskiest and deadliest con.

Penny threatens to cancel Miranda's Christmas unless she attempts to sort her life out. She makes her go into detox. Stevie has a new executive job and Miranda decides to try and get an office job as well but it all ends up proving too much.

With the festivities finally over, Agnes gets permission from the Bishop to stage her Nativity Play and rehearsals are in full swing. Agnes decides to cast herself in the lead role of the Virgin Mary, without knowing that Father Damien has offered the part of the narrator to her posh nemesis Hillary Nicholson.