A redo of "Simple Gifts" as a telling of Jesus's life, death, and resurrection in terms of dancing, which John Langstaff of "The Christmas Revels" made into the centerpiece of that annual holiday show. As the Revels, this would always end Act One and would have the entire company going out into the audience and pulling people from their seats to dance all over the theatre.
Bruce Wayne is enslaved by the Siren, so it's Robin & Batgirl to the rescue! The Bat-rewatch hears Joan Collins utter "The Wail of the Siren."
This is a fun little episode, remarkable for the fact that Batman is utterly irrelevant to it. Batman’s sole contributions to this episode are to drive to and from Barbara’s apartment and to fail to get the Bat-computer to work right. After that, Bruce spends the bulk of the episode mind-controlled.