One Magic Christmas (1985)

A Christmas angel named Gideon is sent by Santa Claus to help Ginny Grainger, who is a cynic and hates Christmas. She and her family have fallen on hard times, making it even harder to believe in anything that can't be seen. With help from her daughter, Abbie, and a trip to the North Pole to see Santa Claus himself, can Gideon find a way to make her believe again?