Watch Full Movie Online. Longing for wilder adventures, Santa Claus' wish comes true when he accidentally bumps his head and starts believing he’s Superklaus: the famous super heroic Christmas Crusader. With the help of Billie a tech-savvy 11-year-old, and Leo his Elf-xecutive assistant, SuperKlaus will take on a megalomaniacal toy-obsessed businessman to save Christmas.