Mischievous reindeer Twinklestar has bolted - leaving his Christmas caravan to fall from the sky! Luckily the extraordinary passengers - Niklas, a real-life Santa Claus, two angels and assorted elves - crash-land in a friendly neighbourhood where two children called Ben and Charlotte come to their rescue. But they're still in terrible danger. On their trail are Gerold Goblynch and his motor-sledge-riding bad Santas, a treacherous bunch from Yule Land, who will stop at nothing to steal Christmas!