A representative of an alien race that went through drastic evolution to survive its own climate change, Klaatu comes to Earth to assess whether humanity can prevent the environmental damage they have inflicted on their own planet. When barred from speaking to the United Nations, he decides humankind shall be exterminated so the planet can survive.
For hundreds of years, the Claus family has delegated the title "Santa" to a chosen few of its members, which can be passed down upon retirement. Each Christmas, Santa and his vast army of highly trained elves produce gifts and distribute them around the world in a one-night high-tech operation. However, when one of 600 million children to receive a gift from Santa on Christmas Eve is missed, it is deemed ‘acceptable’ to all but one—Arthur Claus, the current Santa’s misfit son deemed ineligible for the title, who executes an unauthorised rookie mission to get the last present halfway around the globe before dawn on Christmas morning.