In 1964 a Crack Scout Team of One was sent on a secret mission by Santa Claus to find a path through what was to become the "Storm of the Century" barreling down upon Christmas Town.
That Reindeer's name was "Fireball" and he was the fastest, but most reckless of Santa's Reindeer.
He was battered and bruised by the Hurricane-like weather and was then targeted and attacked by Russian MIG Fighters as he dropped out of the clouds looking for a safe-haven and some rest.
Barely escaping with his hooves intact, Fireball returned to Christmas town a full week after Christmas had been saved... by another Reindeer.
... and other then Santa, no one knew he was even gone.
This song "Fireball" is a taste of the "rest of the story."