When Sam McGuffin hears the sound of reindeer hooves on Christmas Eve, he can’t resist sneaking out the window and into the back of Santa’s sleigh. He wants to see what the North Pole is really like. But the sleigh isn’t headed to the North Pole that night. It’s destined for Santa’s Island, a top-secret, out-of-this-world vacation paradise. And now Sam is about to receive the ultimate gift from Santa—a day of unforgettable amusements with Santa and his elves—all because he’ll say something to Santa that no other kid has ever thought to utter: “Thank you.”