In 1966, David, a bachelor, anticipates a quiet Christmas, but his plans are upended when his neighbor, Stephanie, reveals she won a competition to host Tommy Saunders’ Christmas Eve TV special live from her home—using his address. Fast forward to 1981, where John and Lizzie discover that this Christmas will be their last on Cherry Lane, as John is offered a job in Michigan and Lizzie learns she is expecting a baby. In 2000, best friends Matt and Rebecca experience surprising emotions as they investigate the source of a series of Christmas-themed acts of kindness.