CGI animated adventures of the popular builder and his friends, reconstructed for the 21st century. The team are erecting a gingerbread house display at the plaza, but Muck cannot resist taking on the role of a Christmas elf, zipping about to make the season special. But when he tries building a toy go-kart, decorating a Christmas tree and delivering presents, it leads to the collapse of the display house! Meanwhile, Wendy wants to make a handmade Christmas card for Bob.