The annual fan-favorite event, now in its fourth year, was first introduced to honor Batman’s 75th anniversary. This year, in honor of Harley Quinn’s 25th anniversary, BATMAN DAY will also feature the immensely popular Clown Princess of Crime who burst into our lives when she debuted on Batman: The Animated Series in 1992. With deadlines looming, some of the students of Super Hero High decide to stay up and finish their comic book projects for Miss Moone's art class. Can the girls help each other finish in time?