LEGO City Advent Calendar (4428)(Manufacturer's Age: 5 - 12 years) Countdown to Christmas the LEGO way with 24 gifts behind doors to build and create a holiday story with this LEGO City Advent Calendar (4428)! It's Christmas time again but Santa's sleigh is stuck in the forest snow! He needs help from the LEGO City forest fire department. Open a door every day, December 1-24, to reveal the MiniFigures, models and accessories that Santa needs to get him out. Only you can help free Santa's sleigh in time for Christmas!