On October 31, when pint-sized ghouls and goblins trick or treat, they're upholding an ancient northern European ritual dating back thousands of years. From the Celtic festival of Samhain to the mumming tradition and the Christian feast day All Hallows' Eve, we find out why this night is the scariest of the year!

Rating: TVPG

Running Time: 60 minutes

Genre:U.S. History