Jax Diamond and his new pint-sized partner team up to save the Christmas holidays in 1920s New York City. Officer Jax Diamond doesn’t always play by the rules, and he’s in the hot seat again with the captain of his precinct. So, when a brazen little puppy alerts him of a crime, Jax is ordered to stand down or get canned. On the city streets, broke and alone, Jax beats himself up for making the wrong decision. Even the little tramp who keeps trailing him everywhere can’t lift his spirits. But crime never stops in New York City, and a string of deadly Christmas capers spirals out of control. Hang on to your seat as Jax and his new pint-sized partner, Ace, team up to save the Christmas holidays during the Roaring Twenties, an era of fun and frolic, song and dance, speakeasies, gangsters, bootlegging, and bribes.