As Randall prepares for the Advent season, Maggie decides to level up the annual Christmas Sing-Along and turn it into a full-blown Christmas Eve pageant spectacular. Meanwhile, Doug discovers a thief hiding out in the workshop and wrestles with whether he should let it stay and if he should keep it a secret. When the workshop's new neighbor, Scott Hamilton, announces he's building the biggest Christmas light display the town has ever seen, Maggie's finds herself called on to sacrifice more and more of her own dreams for the pageant to help her friends. With so much activity, emergency, and a dizzying carousel of friends stopping by, will Maggie erupt with frustration or embrace the invitation of Christmas?