The continuing adventures of the Portokalos family. A follow-up to the 2002 comedy, "My Big Fat Greek Wedding."

When Maggie's sister Jenna saddles her with an autistic newborn named Cody she touches Maggie's heart and becomes the daughter she has always longed for. But six years later Jenna suddenly re-enters her life and, with her mysterious new husband, Eric Stark, abducts Cody. Despite the fact that Maggie has no legal rights to Cody, FBI agent John Travis takes up her cause when he realizes that Cody shares the same birth date as several other recently murdered children.

Erin joins her dad Doug for a Christmas in the family’s former hometown of Aurora on a mission that is part business – selling the family home – and major bucket list item for Erin to see the Aurora Borealis light up the Northern sky. Realtor Lori and family friend and local tour guide Trevor create a Christmas inspired at every turn by faith, love, and hope, so much so that Christmas bells hung over decades in a forest grove ring an unbroken song, a harbinger of miracles to come.