Haul out the holly - it's time for the "Down These Mean Streets" holiday special. We're wrapping up 2017 with Christmas capers from four old time radio sleuths. First, Natalie Masters is Candy Matson, the gorgeous girl detective of San Francisco, in "Jack Frost" (originally aired on NBC on December 10, 1949). Next, Dick Powell and his Richard Diamond cast of characters present their version of Charles Dickens' A Christmas Carol (originally aired on NBC on December 24, 1949). Then, Bob Bailey files a holiday expense account as Yours Truly, Johnny Dollar: "The Missing Mouse Matter" (originally aired on CBS on December 23, 1956). Finally, we head to the Big Apple for Larry Thor as Detective Danny Clover in "Santa Takes a Powder" from Broadway is My Beat (originally aired on CBS on December 24, 1949).