The Hecks countdown the 12 days of Christmas with Frankie's parents, Pat (guest star MARSHA MASON) and Tag (guest star JERRY VAN
DYKE), when they come to town to spend the holiday with the family – much to Mike's dismay. But when Frankie decides that she wants
to take the focus off of the gifts and make it a simple Christmas, Pat and Tag have other ideas in mind.
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