Harley Quinn; Devani Kage; Red Tool; Mason Macabre; Madame Macabre; Aayush Kage; Harley Sinn; Sharon Quinzel (cameo); Nick Quinzel (cameo)
Synopsis
Harley is challenged by Devani Kage, the second person to come back in time to kill Harley because it's believed that she will eventually kill Batman. It turns out that Red Tool was the first such person and he has his own plans. Elsewhere, Harley Sinn has kidnapped Madame Macabre and her son Mason.
Joker sends Harley on an errand to find his favorite stink bombs, but she finds that the only store selling them is going out of business, to be replaced by an artisan cold brew coffee bar.