It's Christmas Eve and someone is calling in on the Umi Alarm from far away. It's Santa Claus! Santa's toy-making machine is broken and it’s not making any toys. The team must get to Santa’s Workshop and fast. Geo uses his handy Shape Belt to make a reindeer who happily flies them to the North Pole. With the clock ticking, Team Umizoomi goes bravely inside the humungous toy machine to see how it works and to get it up and running. With their mighty math powers, the Team solves the problem and gets the last three presents built and wrapped just before Santa and his reindeer have to leave. Christmas is saved! And Santa thanks the Team with a special invite - they get to accompany him on his sleigh to deliver his toys!